Land Navigation and Orienteering

Content Extraction Summary

Hook Options

A 1-degree compass error puts you 92 feet off course for every mile traveled — over a 10-mile hike, that is nearly a fifth of a mile from where you intended to be, enough to miss a water source, a trail junction, or an extraction point entirely. GPS receivers fail in dense canopy, canyons, and cold weather at rates that would alarm anyone who treats them as primary navigation tools. The U.S. Army still requires every soldier to pass a land navigation course with map and compass — not because the technology is unavailable, but because the technology is unreliable when it matters most.

Key Mechanism

Land navigation reduces to two problems: knowing where you are, and knowing where you need to go. A topographic map encodes three-dimensional terrain onto a two-dimensional surface through contour lines — lines of equal elevation. A compass provides a consistent angular reference to magnetic north. Combining these two tools gives you the ability to determine your position (resection), identify distant features (intersection), plan efficient routes through complex terrain, and maintain accurate direction of travel in zero-visibility conditions.

Misconception to Correct

Most people assume GPS has made map and compass skills obsolete. In practice, GPS units fail due to battery depletion, satellite signal loss under heavy canopy or in narrow canyons, screen breakage, and cold-weather battery drain. A folded paper map and a quality compass have no batteries, no signal requirements, no screens to crack, and no circuits to short in wet conditions. They are the only navigation tools that work in every environment, every time.

Practical Application

Before any backcountry trip, calibrate your personal pace count on known distances over flat and hilly terrain, set your compass declination for the area, and plan your route with identifiable attack points, catching features, and backstops. These preparations take 30 minutes and eliminate the majority of backcountry navigation errors.

Citation-Ready Claims

• [GPS failure rates in canopy] → [signal degradation under forest cover] → [FM 3-25.26, U.S. Army Map Reading and Land Navigation]
• [Compass error over distance] → [1 degree = 92 ft per mile] → [geometric calculation, confirmed in Silva compass manual]
• [Declination variation] → [up to 20+ degrees in parts of North America] → [NOAA National Centers for Environmental Information]
• [Pace count reliability] → [trained navigators maintain ±3% accuracy on known terrain] → [U.S. Army Ranger Handbook, SH 21-76]

A 1-degree error on a compass bearing displaces you 92 feet for every mile you walk. Over 10 miles, you miss your target by 920 feet — nearly a fifth of a mile. That is the width of a small valley. This is why precision matters in land navigation, and why the tools and techniques covered here have not been replaced by GPS despite decades of satellite technology. They have been supplemented by it.

The U.S. military still teaches map and compass land navigation as a core combat skill. Not out of tradition. Because GPS satellites can be jammed, spoofed, or denied. Batteries die. Screens crack. Signals vanish under triple-canopy jungle and in deep canyon terrain. A topographic map and a quality compass work in every environment on earth, require no infrastructure, and never run out of power.

This article covers the complete skill set: reading topographic maps, using a compass, adjusting for declination, taking and following bearings, determining your position through triangulation, planning routes using terrain association, navigating at night, using natural indicators, and integrating GPS as a supplement rather than a primary tool.

1. Topographic Maps

What a Topographic Map Shows

A topographic map represents three-dimensional terrain on a flat surface using contour lines — lines connecting points of equal elevation above sea level. Every point on a single contour line is at the same height. The spacing between lines tells you how steep or gentle the terrain is.

**Contour interval** is the elevation difference between adjacent contour lines, printed in the map margin. A 40-foot contour interval means each line represents a 40-foot change in elevation. Tightly spaced lines indicate steep terrain. Widely spaced lines indicate gentle slopes or flat ground.

**Index contours** are the heavier, darker lines that appear every fifth contour line. They carry elevation labels. If you can read the index contour, you can count the thinner intermediate contours between them to determine the elevation of any point on the map.

Terrain Features

The military teaches ten major terrain features. Recognizing them on a map is the foundation of terrain association — the ability to match what you see on paper to what you see in front of you.

**Hilltop.** Concentric closed contour lines with the highest elevation in the center. The ground slopes away in all directions.

**Valley.** An elongated low area between ridges or hills. Contour lines form a U or V shape pointing uphill (toward higher elevation). Water flows down valleys.

**Ridge.** An elongated high area. Contour lines form a U or V shape pointing downhill (toward lower elevation). Ridges are natural handrails for navigation — you can follow them without a compass bearing.

**Saddle.** A low point between two higher areas, resembling an hourglass shape in contour lines. Saddles are key terrain features for route planning because they offer the lowest crossing point between two peaks.

**Spur.** A short ridge extending from a hilltop or main ridge. Contour lines point away from the high ground. Spurs are common attack points because they are visible from a distance and identifiable on the map.

**Draw.** The opposite of a spur — a short valley extending into higher ground. Contour lines point toward the high ground. Draws often contain seasonal streams. Confusing draws and spurs is one of the most common map reading errors.

**Cliff.** Contour lines that merge or overlap, indicating a vertical or near-vertical drop. On some maps, cliff symbols (short tick marks) supplement the contour lines.

**Depression.** A low area surrounded by higher ground. Marked by contour lines with small tick marks (hachure marks) pointing inward toward the lower elevation. Depressions can be sinkholes, craters, or excavated areas.

**Cut and Fill.** Man-made features where terrain has been excavated (cut) or built up (fill) for roads, railways, or construction. Indicated by specific symbols rather than natural contour patterns.

Map Margins and Legend

The margins of a USGS topographic map contain critical information: the contour interval, the map scale (commonly 1:24,000, where 1 inch = 2,000 feet), the magnetic declination diagram, the date of the survey data, the grid system used, and the names of adjacent map sheets. Read the margins before you read the map. The declination diagram alone can save you from a systematic error that compounds with every bearing you take.

Map Scale and Distance

At 1:24,000 scale, 1 inch on the map equals 2,000 feet on the ground, or roughly 0.4 miles. A standard 7.5-minute USGS quad sheet covers approximately 49 to 70 square miles depending on latitude. Use the bar scale printed on the map — do not rely on measuring with a ruler unless you have confirmed the map has not been resized from its original printing.

2. The Compass

Anatomy of a Baseplate Compass

A quality baseplate compass (the type used for orienteering) has the following components:

• **Baseplate.** The transparent rectangular plate. It has a direction-of-travel arrow printed on it and ruler markings along the edges for map measurement.
• **Rotating housing (bezel).** The circular dial marked in degrees from 0 to 360. It rotates freely on the baseplate.
• **Magnetic needle.** Suspended inside the housing on a jeweled bearing. The red end points toward magnetic north.
• **Orienting arrow.** Printed on the bottom of the housing. When you rotate the bezel, the orienting arrow rotates with it. Aligning the magnetic needle inside the orienting arrow ("red in the shed") is how you set and follow bearings.
• **Orienting lines.** Parallel lines inside the housing, used to align the compass with the grid lines on a map.
• **Declination adjustment screw.** On quality compasses (Silva Ranger, Suunto MC-2, Brunton TruArc), this allows you to mechanically offset the orienting arrow to account for the difference between magnetic north and true north.

Lensatic (Military) Compass

The lensatic compass used by the U.S. military has a sighting wire, a magnifying lens for precise readings, and a damped needle. It reads in both degrees and mils (6,400 mils in a circle). It is more precise for shooting bearings to distant objects but slower and less convenient for map work than a baseplate compass. Either type works for the techniques in this article. The baseplate compass is recommended for civilian use because it integrates directly with map reading.

Why Cheap Compasses Fail

A compass needle is a magnetized piece of metal balanced on a pivot point. In cheap compasses, the pivot wears quickly, the needle develops a wobble, and the dampening fluid (if present) leaks or develops bubbles. The result is inconsistent readings that can vary by 5–10 degrees — enough to put you hundreds of feet off course over a mile. Additionally, cheap compass needles are often weakly magnetized and respond sluggishly, making them unreliable near ferrous metal or electronic devices.

Invest in a compass with a jeweled bearing, good dampening, and a declination adjustment. Silva, Suunto, and Brunton all make reliable models in the $30–$60 range. This is not a tool where saving money makes sense.

3. Declination

Three Norths

There are three "norths" relevant to land navigation:

• **True north.** The geographic North Pole — the axis around which the earth rotates. Map grid lines on USGS topographic maps are oriented to true north (or very close to it on UTM grids).
• **Magnetic north.** The point toward which a compass needle points. This is not the geographic North Pole. As of 2025, magnetic north is located in the Canadian Arctic, roughly 80.7°N, 72.7°W, and it moves approximately 25–35 miles per year.
• **Grid north.** The direction of the north-south grid lines on a map projection. On UTM-gridded maps, grid north can differ slightly from true north depending on your position within the grid zone.

Why Declination Matters

The angular difference between true north and magnetic north at your location is called **magnetic declination**. In the eastern United States, declination is typically west — meaning magnetic north lies to the west of true north. In the western United States, declination is typically east.

The magnitude varies enormously. In parts of Maine, declination exceeds 16 degrees west. In parts of Washington State, it exceeds 15 degrees east. In parts of Louisiana or Wisconsin, it is near zero (the agonic line).

If you ignore declination when converting a bearing from your map (referenced to true north) to your compass (referenced to magnetic north), you introduce an error equal to the local declination on every single bearing. A 15-degree error displaces you 1,380 feet per mile — over a quarter of a mile. After three miles, you are nearly a full mile off course.

Declination Adjustment — Worked Example

**Scenario:** You are navigating in the Appalachian Mountains of western North Carolina. The local magnetic declination is 7 degrees west. You measure a bearing on your map from your current position to a trail shelter. The map bearing (true bearing) is 285 degrees.

**Conversion without mechanical adjustment:**

To convert a true bearing to a magnetic bearing when declination is west, add the declination:

• Magnetic bearing = True bearing + West declination
• Magnetic bearing = 285° + 7° = 292°

You set 292° on your compass bezel and follow that bearing.

**Conversion with mechanical adjustment:**

If your compass has a declination adjustment screw, you set it to 7° west once. After that, every bearing you read on the map can be set directly on the compass without mental math. The mechanical offset handles the conversion automatically.

**The mnemonic:** "Declination west, compass best" (add to the map bearing to get the compass bearing). "Declination east, compass least" (subtract from the map bearing to get the compass bearing). Or simply: West is positive, East is negative when going from map to field.

**Checking your declination:** The NOAA Magnetic Declination Calculator (ngdc.noaa.gov) provides current declination for any coordinates. The declination printed on old USGS maps may be outdated by several degrees — always verify against current data before a trip.

4. Taking and Following Bearings

Map to Compass (Planning a Route)

1. Place the compass on the map with the baseplate edge connecting your current position to your destination. 2. Ensure the direction-of-travel arrow points from your position toward your destination. 3. Rotate the bezel until the orienting lines in the housing are parallel to the map's north-south grid lines, with the orienting arrow pointing toward the top of the map (north). 4. Read the bearing at the index line on the bezel. This is your true bearing. 5. Adjust for declination (if your compass does not have a mechanical declination adjustment). 6. Hold the compass level in front of you, rotate your body until the magnetic needle aligns inside the orienting arrow (red in the shed), and look up along the direction-of-travel arrow. That is your bearing.

Compass to Map (Identifying a Feature)

1. Hold the compass level and point the direction-of-travel arrow at the feature you want to identify. 2. Rotate the bezel until the magnetic needle sits inside the orienting arrow (red in the shed). 3. Read the bearing at the index line. This is your magnetic bearing. 4. Convert to a true bearing by reversing the declination adjustment. 5. Place the compass on the map with the edge of the baseplate on or near your known position. 6. Rotate the entire compass (without moving the bezel) until the orienting lines align with the map's grid lines (orienting arrow pointing north on the map). 7. Draw a line along the baseplate edge from your position. The feature lies somewhere along that line.

Shooting a Bearing to a Landmark

When visibility allows, identify a landmark on your bearing line — a distinctive tree, a rock outcrop, a fence post. Walk to it. Then shoot a new bearing to the next visible landmark along your line. This technique compensates for the fact that it is nearly impossible to walk a perfectly straight line through rough terrain while staring at a compass.

Following a Bearing Through Dense Terrain

In heavy brush or forest where you cannot see landmarks, use a leapfrog technique. Send a partner ahead on the bearing line as far as visibility allows. Direct them left or right until they are exactly on the bearing. Walk to them. Repeat. If alone, identify the farthest visible object on your bearing line (even a patch of light through the canopy), walk to it, and reshoot.

5. Triangulation

Resection — Finding Your Position

Resection determines your unknown position using bearings to two or more known points (identifiable features that are also marked on your map).

1. Identify two features you can see and can locate on the map — a mountain peak, a radio tower, a lake shore point, a road bend. 2. Shoot a bearing to the first feature. Convert to true bearing. On the map, place the compass edge on that feature and rotate until the orienting lines align with the grid. Draw a line back from the feature toward you (the back bearing, 180° from the bearing you shot). 3. Repeat for the second feature. 4. Your position is where the two lines intersect on the map.

**Three-bearing fix:** A third bearing to a third known point provides a check. The three lines will form a small triangle (called a "cocked hat") rather than intersecting at a single point. Your position is inside the triangle. A large triangle indicates one or more bearings are inaccurate — reshoot.

Intersection — Finding an Unknown Point

Intersection determines the position of an unknown point from two known positions.

1. From your first known position, shoot a bearing to the unknown point. Plot the bearing line on the map. 2. Move to a second known position (or have a partner there). Shoot a bearing to the same unknown point. Plot that line. 3. The intersection of the two lines marks the unknown point's position.

This technique is used for locating distant features, marking positions of objectives, and coordinating with others when two parties can see the same feature but need its grid coordinates.

6. Route Planning

Attack Points

An attack point is a large, easily identifiable feature near your destination that you navigate to first, then use as a starting point for precise navigation to the final objective. Example: if your destination is a small spring, navigate first to the obvious ridgeline 400 meters south of it, then navigate precisely from the ridge to the spring. This reduces the distance over which compass errors can accumulate.

Catching Features

A catching feature is a large linear feature beyond your destination that tells you if you have overshot. If you are navigating toward a trail junction and hit a river 500 meters past it, the river is your catching feature — you know you went too far and can backtrack.

Handrails

A handrail is a linear feature that runs parallel or nearly parallel to your direction of travel — a river, a ridgeline, a power line, a fence, a road. You follow the handrail instead of taking a compass bearing. Handrails are faster and more reliable than compass navigation over the distances they cover.

Backstops

A backstop is a feature behind your starting point that alerts you if you accidentally travel in the wrong direction. If you leave a road to navigate south into the woods, the road itself is your backstop — hitting it means you reversed your bearing.

Aiming Off

When navigating toward a feature on a linear object (a bridge on a river, a gate on a fence), deliberately aim to one side of the target. When you hit the linear feature, you know which direction to turn. If you aim directly at the bridge and miss by 50 meters, you do not know whether to go left or right along the river. If you aimed 200 meters to the left, you know to turn right when you reach the river.

Pace Counting

Pace counting is the primary method of measuring distance traveled on foot when you do not have GPS or when GPS is unreliable.

**What a pace is:** One pace = two natural steps (left foot hits the ground, then right foot hits the ground = one pace).

**Calibration procedure:**

1. Find or measure a known distance of 100 meters on flat ground. A football field (end zone to end zone) is approximately 100 meters. Alternatively, use a road with known mile markers and a GPS to mark a 100-meter segment. 2. Walk the 100-meter distance at your normal walking pace — the pace you will actually use in the field, not an exaggerated stride. 3. Count your paces (every time your left foot — or right foot, pick one — hits the ground). 4. Repeat three times. Average the results. This is your pace count for 100 meters on flat terrain. 5. Most adults average 62–68 paces per 100 meters on flat ground. Tall individuals may be 58–62. Short individuals may be 68–74. 6. Repeat the calibration on a moderate uphill slope. Your pace count will increase (shorter steps). Record this separately. 7. Repeat on a moderate downhill slope. Your pace count will be similar to flat or slightly less. 8. Repeat through brush or uneven ground. Your count will increase significantly.

**Recording your pace counts:**

| Terrain | Pace Count per 100m | |---|---| | Flat, open ground | ___ | | Moderate uphill | ___ | | Moderate downhill | ___ | | Brush / uneven | ___ | | Sand / loose gravel | ___ | | Snow (6 inches) | ___ |

**Using pace count in the field:**

If your pace count on flat ground is 64, and you need to travel 600 meters, you will count 384 paces (6 × 64). Use ranger beads (a cord with two sets of beads — 9 beads in the lower section and 4 or 5 in the upper section) to track hundreds of meters. Each time you count 64 paces (100 meters), slide one lower bead down. After 9 lower beads, slide one upper bead and reset the lower beads. Each upper bead represents 1,000 meters.

**Factors that change pace count:** Fatigue lengthens it. Heavy load lengthens it. Steep terrain lengthens it. Night movement lengthens it 5–10%. Wind resistance lengthens it. Always use your calibrated values, not someone else's.

7. Night Navigation

Maintaining Direction in Darkness

Night navigation is slower, more deliberate, and more prone to error than day navigation. The techniques that work:

**Compass and pace count.** These are your primary night tools. Take a bearing before you move. Count your paces rigorously. Reshoot your bearing frequently — every 50–100 meters in dense terrain.

**Silhouette navigation.** On ridgelines and hilltops, terrain features are often visible as silhouettes against the sky. Use them as intermediate waypoints.

**Handrails at night.** Linear features like streams, ridges, and fences are even more valuable at night because they provide continuous positional reference without requiring you to see distant landmarks.

**Light discipline.** If you use a headlamp or flashlight, your night vision is destroyed for 20–30 minutes. Use red-filtered light for map reading — red light has minimal impact on dark adaptation. Better yet, memorize your bearing and pace count before moving and navigate without light.

Star Navigation

**Finding Polaris (Northern Hemisphere).** The two stars forming the outer edge of the Big Dipper's "cup" (Dubhe and Merak, the "pointer stars") point directly toward Polaris. The distance from the pointer stars to Polaris is approximately five times the distance between the two pointer stars. Polaris is within 1 degree of true north — accurate enough for rough directional checks.

**Finding south using the Southern Cross (Southern Hemisphere).** Extend the long axis of the Southern Cross (Crux) 4.5 times its length. That point is approximately above the south celestial pole. Drop a vertical line from that point to the horizon. That horizon point is roughly due south.

**Limitations.** Star navigation gives you a direction, not a precise bearing. It is most useful for confirming your compass direction or maintaining general direction of travel when you cannot use a compass (lost, broken, or in an area with strong magnetic anomalies).

Reduced Visibility Protocols

In fog, heavy rain, or whiteout conditions, reduce your leg length to the farthest visible point. Navigate from one visible object to the next on your bearing line. In absolute zero-visibility conditions (dense fog at night), establish a pace count and compass bearing and move slowly, checking frequently. Consider stopping and waiting for conditions to improve — navigation errors in zero visibility compound quickly and can put you in dangerous terrain.

8. Natural Navigation

Sun Position

The sun rises in the east and sets in the west — roughly. More precisely, it rises exactly east and sets exactly west only on the equinoxes (around March 20 and September 22). In summer in the Northern Hemisphere, it rises north of east and sets north of west. In winter, it rises south of east and sets south of west. In the Southern Hemisphere, reverse these. Knowing the date and your approximate latitude gives you a general east-west reference.

At solar noon (when the sun is at its highest point), it is due south in the Northern Hemisphere and due north in the Southern Hemisphere. Solar noon is not necessarily 12:00 on your watch — it depends on your position within your time zone and whether daylight saving time is in effect.

Shadow Stick Method

1. Place a straight stick (3 feet or longer) vertically in the ground in a sunny area. 2. Mark the tip of the shadow with a small stone or stick. This is your first mark. 3. Wait 15–20 minutes. Mark the new shadow tip position. 4. Draw a line connecting the two marks. This line runs approximately east-west — the first mark is the west end, the second mark is the east end (because the sun moves east to west, the shadow tip moves west to east). 5. A line perpendicular to this east-west line gives you an approximate north-south line.

This method is accurate to within about 10 degrees. Good enough for general direction finding, not precise enough for careful navigation.

The Moss Myth

"Moss grows on the north side of trees" is one of the most repeated and least reliable navigation tips in existence. Moss grows where conditions are moist and shaded. In a dense forest, that can be any side of a tree depending on the canopy, the slope aspect, the prevailing wind, and local drainage. On isolated trees in the open in the Northern Hemisphere, moss may preferentially grow on the north side because it receives less direct sunlight — but this is a tendency, not a rule. Never navigate by moss alone.

Vegetation Patterns

More useful than moss: in the Northern Hemisphere, south-facing slopes receive more sunlight and tend to be drier with different vegetation than north-facing slopes. In mountains, you can often distinguish south-facing slopes (grass, sparse trees, dry soil) from north-facing slopes (denser forest, more undergrowth, wetter soil) at a distance. This vegetation difference can help confirm your orientation when combined with map reading.

Water Flow

Water flows downhill. If you know the general drainage pattern of the area from your map (which direction the major rivers flow), finding a stream gives you directional information. In many wilderness areas, following a stream downstream will eventually reach a trail, road, or settlement — though this is a survival strategy, not a precision navigation technique.

Wind Patterns

Prevailing wind direction can be a rough reference if you know the local pattern. In much of the continental United States, prevailing winds are westerly. Trees in exposed areas often show a growth lean or flagging (branches growing predominantly on the downwind side). However, local terrain effects (valley channeling, mountain wave effects) make wind an unreliable primary navigation tool.

9. GPS Integration

GPS as a Supplement

A GPS receiver is a powerful navigation tool. Use it to mark waypoints, record your track, check your position against your map work, and store coordinates for future trips. Do not use it as a replacement for map and compass skills.

**When GPS fails:**

• Heavy forest canopy degrades GPS accuracy to 30–100+ feet (FM 3-25.26 notes that heavy canopy and terrain masking significantly degrade civilian GPS signals).
• Deep canyons and narrow valleys block satellite signals.
• Cold weather drains batteries rapidly — lithium batteries lose capacity below 20°F.
• Wet conditions can short circuits or fog screens.
• A fall onto rock can crack a screen or damage the antenna.

Waypoint Navigation

Before a trip, pre-load waypoints for your trailhead, key trail junctions, water sources, campsites, and your destination. Assign descriptive names ("SPRING-01," "CAMP-2," "RIDGETOP"). If your GPS fails mid-trip, you can plot these waypoints on your paper map using the coordinates you recorded.

Track Logging

Enable track logging to record your path. This creates a breadcrumb trail you can follow back to your starting point. It also provides accurate distance traveled (more accurate than pace counting on rough terrain). Review your tracks after each trip to improve your route planning for the area.

UTM Coordinates

Universal Transverse Mercator (UTM) coordinates use a grid system of meters rather than the degrees, minutes, and seconds of latitude/longitude. UTM is preferred for land navigation because it uses a regular grid aligned with the grid lines on USGS topographic maps, and distances are measured in meters — making it easy to calculate distances and plot positions.

A UTM coordinate consists of a zone number (1–60, each covering 6 degrees of longitude), a zone letter (C–X, covering latitude bands), an easting (meters east of a zone-specific origin), and a northing (meters north of the equator, or in the Southern Hemisphere, meters north of an adjusted origin at 10,000,000 meters south).

Example: 17S 0630084 3907153. Zone 17, band S. 630,084 meters east. 3,907,153 meters north. This gives a position accurate to 1 meter. In practice, you round to the nearest 10 or 100 meters depending on the precision of your map reading.

Most GPS units can display position in UTM format. Set your GPS to UTM and your map datum to WGS 84 (the standard GPS datum) for direct compatibility with modern USGS maps.

10. Putting It Together

Pre-Trip Navigation Checklist

1. **Obtain current maps.** USGS 7.5-minute quadrangles or equivalent for your area. Ensure coverage of adjacent map sheets if your route crosses boundaries. 2. **Check declination.** Use NOAA's online calculator (ngdc.noaa.gov/geomag/declination.shtml) for current declination at your specific location. Do not rely on the declination printed on maps more than a few years old. 3. **Set your compass.** If your compass has a declination adjustment, set it now. Verify by pointing the compass at a known true-north reference and confirming the needle aligns correctly with the adjusted orienting arrow. 4. **Plan your route.** Mark waypoints. Identify attack points, catching features, handrails, and backstops for each leg. Write bearing and distance for each leg on a route card. 5. **Calibrate your pace count.** If you have not done so recently, or if terrain conditions are significantly different from your last calibration, re-calibrate. 6. **Waterproof your map.** Use a map case or apply a waterproofing treatment. A soggy, tearing map is worse than no map because it gives you false confidence.

Building Proficiency

Land navigation is a perishable skill. It degrades without practice. The most effective training method is orienteering — competitive navigation through a series of control points using only a map and compass. Most areas have orienteering clubs that host events ranging from beginner to advanced courses. These events provide immediate feedback on your navigation accuracy and build the terrain association skills that make backcountry navigation intuitive rather than mechanical.

Start with day navigation on marked trails in familiar terrain. Progress to off-trail navigation in moderate terrain. Then practice night navigation. Then combine all three in unfamiliar terrain with significant elevation change. Each stage builds on the last, and there is no substitute for repetition.

Sources

1. U.S. Department of the Army. *FM 3-25.26: Map Reading and Land Navigation.* Washington, D.C.: Headquarters, Department of the Army, 2001. 2. U.S. Department of the Army. *Ranger Handbook, SH 21-76.* Fort Benning, GA: U.S. Army Infantry School, 2017. 3. Silva Sweden AB. *Silva Compass Manual: Navigation Techniques.* Bromma, Sweden: Silva. 4. Kjernsmo, Kjetil. *Orienteering: The Sport of Navigating with Map and Compass.* International Orienteering Federation educational materials. 5. NOAA National Centers for Environmental Information. *Magnetic Declination (Geomagnetic) Calculator.* ngdc.noaa.gov/geomag/declination.shtml. 6. Burns, Bob and Mike Burns. *Wilderness Navigation: Finding Your Way Using Map, Compass, Altimeter & GPS.* 3rd ed. Seattle: Mountaineers Books, 2015. 7. Seidman, David. *The Essential Wilderness Navigator.* 2nd ed. Camden, ME: Ragged Mountain Press, 2001.

`[practical-skills]` `[beginner]`