Mark it once you can do it without this page open.

How to do it

  1. Before any hike, tell someone your route and when you will be back, and carry water, a light, a whistle, a warm layer and a charged phone.
  2. When you realize you are lost, stop, sit, drink and eat something to calm down.
  3. Look around for landmarks and check your map and phone's map app.
  4. Go back only along a route you are sure of; if not, stay put, since searchers look along your planned route.
  5. Call 911, or text if calls fail, and give your phone's coordinates and a description of the area.
  6. Switch the phone to low power mode and save battery between checks.
  7. Stay warm and dry: put on layers, get out of wind and sit on your pack rather than the cold ground.
  8. Signal with three blasts on a whistle, a bright jacket in the open, or a flashlight at night.

Stop and call a professional if

  • Call 911 as soon as you know you are lost, injured, or night is falling; do not wait until morning.
  • Anyone is hurt, very cold, confused or out of water: tell the dispatcher.

Common mistakes

  • Hurrying on in the hope of finding the trail, which usually gets you further from it.
  • Following a stream downhill into steeper, harder ground.
  • Draining the phone battery with constant checking.
  • Not telling anyone where you were going.

Quick self-check

Three questions. Your last score is kept in this browser.

1. What is the first thing to do when you realize you are lost?
2. What is the standard distress signal with a whistle?
3. Calls will not connect. What might?

Teach this to someone

A one-page sheet for showing a friend, a roommate or a kid: what to say, what to show, and one question to check it landed.

Words on this page

Sources

  • National park and forest service visitor safety guidance, current edition. Checked September 28, 2026.

Last reviewed . First published .