How to use a compass in orienteering

Honestly, getting good with a compass is pretty much everything in orienteering. Yeah, GPS devices are nice and all, but they can die on you or lose signal at the worst possible moment. A magnetic compass? That thing just works, always. This guide will walk you through using one—from the absolute basics to some more clever stuff—so you can actually find your way without getting completely lost.

Understanding the Parts of a Compass

You can't use the thing if you don't know what the hell each part does. A standard orienteering compass—usually a baseplate model—has these bits:

• Baseplate: That clear plastic bottom with a ruler on it. Handy for measuring distances on the map.
• Housing (Bezel): The rotating ring, marked all the way around with 360 degrees.
• Magnetized Needle: The red end (or bright colored one) that always, always points to magnetic north.
• Orienting Arrow: A red outline arrow sitting inside the housing.
• Direction of Travel Arrow: The arrow on the baseplate that points away from you.
• Index Line: That small fixed line on the baseplate where you read your bearing.

How to Take a Bearing from a Map

This is the big one. A bearing is just the angle between magnetic north and where you want to go.

• Step 1: Place the Compass on the Map. Line up the edge of the baseplate with where you are and where you're headed. Make sure the direction of travel arrow points toward your target.
• Step 2: Rotate the Bezel. Twist the housing until the orienting arrow runs parallel to the map's north-south grid lines. The "N" on the bezel should face the map's north.
• Step 3: Read the Bearing. Check the index line. The degree number there—say, 60°—is your bearing.

Expert Insight: Don't forget about magnetic declination. But honestly, most orienteering maps already account for that, so you can usually skip the math. Just check if your map is designed for orienteering.

Following a Bearing in the Field

Got your bearing? Now walk it.

• Step 1: Hold the Compass Level. Keep it flat in your palm, direction of travel arrow pointing straight ahead.
• Step 2: Turn Your Body. Rotate yourself until the red needle sits perfectly inside the orienting arrow. The red needle should be snug inside that red outline.
• Step 3: Walk Forward. Look up! Pick a distinct landmark—a tree, rock, or hill—right in line with the direction of travel arrow. Walk to it, then repeat.

Common Mistake: Beginners stare at the compass while walking. Don't do that. You'll drift. Always look up and use landmarks.

People Also Ask: How do you orient a map with a compass?

Orienting the map means turning it so the map's north matches real-world north. Here's how: Place your compass flat on the map. Rotate the map—not the compass—until the red needle points to the map's north. Now everything on the map lines up with the terrain in front of you. Makes spotting hills, valleys, and control points way easier.

People Also Ask: What is the difference between magnetic north and true north?

True north is the geographic North Pole. Magnetic north is where the Earth's magnetic field points—currently up in northern Canada. For orienteering, you only care about magnetic north. Most orienteering maps are pre-adjusted for it, so your compass needle points right to the map's north. If you're using a topographic map, though, you gotta calculate declination—the angle difference.

People Also Ask: How do you navigate in thick forest or fog?

Visibility sucks? You need precision. Use "aiming off." Instead of aiming directly at a tiny control point, deliberately aim a few degrees left or right—like 5 degrees. When you hit a stream or trail, you'll know exactly which direction to turn to find the control. This saves you from arriving at a line feature and having no clue which way to go.

Advanced Technique: Using a Compass for Attack Points

Elite orienteers don't usually navigate straight to a control. They use an "attack point"—a big, obvious feature near the control, like a boulder or pond.

• Step 1: Find a large feature on the map close to your control point.
• Step 2: Take a bearing from your current location to that attack point.
• Step 3: Navigate to the attack point using your compass.
• Step 4: From the attack point, take a precise bearing to the control. Cuts down on errors over long distances.

Checklist for a Successful Compass Leg:

• Clear bearing taken from map.
• Map oriented to terrain.
• Landmark selected ahead.
• Red needle in the red house.
• Thumb on current location.