Cairn: Hike Log & Scratch Map

Scratch off every national park and state you have visited. One map, one cairn, no streak guilt.

Your hiking life as one scratch-off map.

Log a U.S. national park or state in seconds. The topo map fills with warm color. A stone joins your cairn. A home-screen widget keeps progress visible between trips.

START WITH EVERYWHERE YOU HAVE BEEN No trip planned? Tap every park and state you have ever visited and turn years of travel into one map in about ninety seconds. Dates optional.

THE MAP IS THE POINT Dark topo field. States fill as terrain. Parks appear as collectible stamps. Pinch into regions. A counter like 28 of 63 parks that means something.

BUILT TO KEEP, NOT TO CHECK No streaks. No guilt. Milestone badges and region sets like Utah's Mighty 5. Year recap every December.

SHARE THE PROOF Share cards with your map — rendered on device, sized for stories.

YOURS, PRIVATELY No account. Logs on your device with optional iCloud sync. Export JSON anytime.

Collections: all 63 U.S. National Parks and all 50 states.