onX Backcountry: Trail GPS App

Discover new hiking and mountain biking trails. onX Backcountry features 650,000+ miles of trails, 300,000+ rock climbs, and 4,000+ ski routes. Whether you’re scouting new terrain or navigating maps in the field, onX Backcountry is the ultimate app for offline outdoor recreation.
Use trustworthy data to elevate how you move through the wild. Plan your hiking, mountain biking, backpacking, or skiing activities with clarity on terrain, conditions, and routes. With LiDAR topo maps, GPS tracking, and 3D offline maps, onX Backcountry is built for the decisions that make or break your days in the field.
Choose your own adventure with activity-specific Map Modes. Toggle Map Layers to show nearby hazards such as wildfires or avalanche terrain. Study distance and elevation gain, and visualize your trip in 3D, even without cell service. Access a reliable offline GPS mapping app, built for remote trails and navigation.
Map out custom routes seamlessly with our snap-to-trail feature and add Waypoints to points of interest. Review Slope Angle and Slope Aspect to evaluate the steepness and direction of terrain. View localized Weather, hour-by-hour Wind Forecasts, and Recent Satellite Imagery.
Download 3D maps for offline use and leave a breadcrumb trail with Tracker to measure key trip stats. Navigate summer trails, backpacking trips, or winter ski tours all in one outdoor app.
A great day in the backcountry starts with a better map. Go farther today with onX Backcountry.
onX Backcountry Map Modes:
▶ HIKING TRAILS & TRACKER
Discover hiking trails and explore the backcountry confidently with tools built for offline navigation. Turn your phone into a handheld GPS tracking device. Measure activity stats and view difficulty, distance or elevation gain on recommended trails and custom-built routes. Use private land, active fire, and smoke Map Layers to hike and go backpacking responsibly.
▶ MOUNTAIN BIKING ROUTES
Plan your next mountain bike ride with detailed information on trail difficulty, elevation, distance, and more. Build your own MTB route or access thousands of guidebook-recommended trails. Download interactive maps to receive terrain context offline and pivot plans when needed. Understand complex terrain using Topo, Satellite, and Hybrid Basemaps.
▶ BACKCOUNTRY SKI TOURS
Trusted by guides, heralded by pros. Because the best skiers don’t just send, they study. onX Backcountry is the only app with offline 3D, LiDAR-based topo, and Avalanche Terrain Exposure Scale (ATES) maps. View recent Snow Imagery, expert-built Beacon Guidebook routes, real-time Weather Forecasts, and Avalanche Simulator data.
▶ YOUR FOUR-SEASON OUTDOOR APP
onX Backcountry brings everything you need for your outdoor pursuits into one place. Download today and access the most detailed, dynamic, and reliable maps for the backcountry.
▶ FREE TRIAL
Start an Elite trial for free when you install the app. Maximize your backcountry experience and access all of our best features for seven days.
▶ PREMIUM & ELITE FEATURES
• 650,000+ miles of hiking, backpacking, and mountain bike trails
• 4,000+ backcountry skiing lines with guidebook descriptions
• 300,000+ rock climbing routes with approach trails
• Save unlimited 3D Offline Trail Maps to navigate without cell service
• 985 million acres of Public Land across the U.S.
• 550,000 Recreation Icons: Trailheads, backcountry cabins, campgrounds, and more
• Map data sourced from USFS, BLM, and NPS
• Private Land Layer (ELITE ONLY): Property maps, land boundaries, land ownership, and acreage
• Recent Imagery (ELITE ONLY): Detailed satellite imagery from the past two weeks
▶ Terms of Use: https://www.onxmaps.com/tou
▶ Privacy Policy: https://www.onxmaps.com/privacy-policy
▶ Feedback: If you have any trouble or have an idea of what you’d like to see in the maps next, please contact us at support@onxmaps.com. We’d love to hear from you.