onX Backcountry: 3D Trail Maps

onX Backcountry delivers reliable offline trail maps for hiking, mountain biking, backpacking, and skiing. With LiDAR topo data, 3D offline maps, and GPS tracking, you can plan routes and navigate confidently even when you have no cell service.

Explore 650k+ miles of trails, 4,000+ ski routes, and 300,000+ rock climbing routes with activity-specific map modes, hazard layers, weather, slope analysis, and offline map downloads. Save routes, add waypoints, view elevation gains, and track your trips with Tracker—designed for remote backcountry adventures.