Craving geysers and granite? USABackpack links four icons in one efficient loop.

1. Permit-Ready Kick-off

Auto-fill wilderness permits; push notifications flag quota drops.

2. Free Shuttle Hacks

Map timed shuttles to dodge crowds—bus alerts sync offline.

3. Bear-Safe Camp Rotation

Gear checklist trims 600 g while keeping ursids out of dinner.

4. Sunrise Rim Walk

Finish atop a crater lake—photospot coordinates loaded in advance.

Download, lace up, and loop the legends.