Know the signs
before you go.
Trail Check is a quick symptom guide for hiking, golfing, or working in Big Bend heat. Tap what you're feeling and get the exact next step — from find shade to call 911.
One clear action, not a wall of advice.
Heat illness escalates fast. Trail Check helps you figure out which rung you're on, and what to do next.
Move to shade, sip water, add a salty snack — fixable in minutes.
Stop activity completely and focus on rehydrating before going further.
Get out of the sun, lie down, cool the body — monitor closely for 30 minutes.
Call 911. One tap gives you the exact words to say to a dispatcher.
Works with no signal
Add it to your home screen before you head out, and it keeps working once you're off the grid.
Built for this heat
Written for Big Bend summers — trails, tee times, and job sites, not a generic first-aid page.
A ready 911 script
If it's heat stroke, one tap gets you the exact words to say to a dispatcher.
Install it once. It's there when it matters.
Free to use, built for anyone heading into the heat — no booking required.