Lost Outdoors: Navigation & Rescue Decisions

Prevent a navigation emergency

• Leave a trip plan: give a reliable person your route, alternates, trailhead and vehicle details, group information, return time, and the time they should call for help.
• Carry independent tools: bring a current paper map and a compass you can use. Download offline maps, charge devices, and carry suitable backup power, but do not make one phone your entire plan.
• Record decision points: note the trailhead, junctions, water crossings, major turns, and safe retreat routes. Periodically look behind you so the return view is familiar.
• Set limits: choose a turnaround time and stop conditions for weather, pain, fatigue, equipment trouble, and route uncertainty.
• Check access: confirm current land-manager alerts, closures, permits, fire restrictions, weather, and communication limitations.

Use STOP when the route becomes uncertain

1. Stop. Stay together, breathe, treat urgent injuries, add clothing before you become cold, and move only far enough to escape an immediate hazard.
2. Think. When and where were you last certain of your position? What did you pass? How much daylight, energy, water, and battery remain?
3. Observe. Check the map, compass, GPS coordinates, elevation, terrain, trail signs, tracks, and landmarks. Separate observations from assumptions.
4. Plan. Choose one plan with a clear reason, limit, and fallback. Do not wander or split the group.

Decision point: retrace or stay put?

Once you have requested rescue, remaining in a safe location generally makes the search simpler. The National Park Service advises changing location only for an immediate threat to life. Do not follow a drainage or improvise a shortcut merely because it appears to lead downhill; waterways can enter cliffs, waterfalls, flood zones, and dense terrain.

Map-and-compass essentials

1. Orient the map: identify true/grid north on the map and magnetic north on the compass. Keep the compass away from vehicles, steel objects, electronics, and power lines while reading it.
2. Use current declination: magnetic north and true north are not usually identical, and the difference changes by place and over time. Check a current official value and follow the instructions for your specific compass.
3. Confirm with multiple features: compare terrain shape, elevation, water, junctions, and prominent landmarks. One matching feature is not enough to justify off-trail travel.
4. Take a bearing only from a known position: align the baseplate with the known start and destination, set the dial to map north, account for declination, then sight a visible landmark along the bearing.
5. Measure progress: use map scale, elapsed time, elevation change, and known features. Stop immediately if the terrain stops matching the map.

Declination adjustments differ between adjustable and non-adjustable compasses. Practice with the manufacturer’s instructions and an official topographic map before depending on the method.

Request help and stay findable

When contacting 911, a ranger, or another rescue authority, send a compact report:

• GPS coordinates and how/when they were obtained
• Trail, park or area, trailhead, planned route, and last known point
• Number of people, injuries, medical needs, and mobility limitations
• Clothing colors, shelter, and equipment
• Weather, terrain, visible landmarks, battery level, and your plan to remain or move

Protect yourself from wind, precipitation, sun, cold, and the ground. Make the safe location visible with bright equipment or a large high-contrast shape. Use a whistle, light, or signal mirror when rescuers may be near, while conserving power. Do not start a fire where it is prohibited or unsafe.

Adaptive and medical planning

• Describe functional needs plainly: walking distance, transfer assistance, terrain barriers, communication access, temperature sensitivity, and required medical equipment.
• Carry medications, accessible signaling tools, repair parts, skin-care supplies, and device power beyond the planned outing time.
• Choose a waiting location that does not create new transfer, pressure, circulation, or exposure risks. Insulate from the ground and make small position changes when medically appropriate.
• Do not abandon essential mobility equipment to attempt a route that has not been confirmed passable. Tell rescuers the combined weight and assistance required.

See the adaptive pack-load guide and Ten Essentials for personal system planning.

A safe 30-minute navigation drill

1. Use a familiar park or managed open area in daylight; remain on an established route and tell someone your practice plan.
2. Mark your start and two obvious decision points on a current map. Set the compass for current local declination.
3. At each point, orient the map and identify at least three matching features.
4. Switch the phone to airplane mode. State your last known point, coordinates, retreat route, turnaround time, and stop conditions.
5. Compose a rescue message containing every item in the section above, then deploy one visible and one audible signal.
6. End the drill before darkness or worsening conditions. Record errors and repeat until the process is calm and consistent.