Signaling
Signal for rescue with the rule of three
Three of anything — fires, whistle blasts, gunshots, flashes — is the international distress signal recognized by rescuers.
Step-by-step
Build three signal fires in a triangle or straight line with 30–50 feet between them, in the largest clearing you can find.
Prep them fully but light only when you hear or see aircraft or searchers — the goal is instant ignition, not constant burn.
Have wet leaves, green boughs, or damp moss ready to throw on for thick smoke by day.
By night, add dry fuel for tall, bright flames.
If you have a whistle, use three sharp blasts, pause, repeat. Three flashes with a mirror or headlamp follow the same pattern.
Tip: Rescuers look for straight lines and geometric shapes because they don't occur in nature. A single fire may be dismissed; three in pattern is unmistakable.
Related outdoor skills
Educational reference only. Wilderness conditions change fast — practice in low-stakes settings, take a certified wilderness first-aid course, and confirm regional regulations before you rely on any of these skills in the field.