Hiking maps · works offline
Offline hiking maps that don’t expire
Download a state before you leave the driveway and the map keeps working past the last bar of signal — trails, trailheads, contours and public land, with your position on top. Offline is free, and there is no download cap.
Why a hiking map has to work offline
Most trailheads sit at the edge of coverage and most trails leave it entirely. A map that streams its tiles shows a grey grid at exactly the junction where you needed it. Trailmonger packs are vector data stored on the phone: the trail network, its names and the terrain render from local files, and GPS works without a cell connection, so the blue dot keeps moving.
Packs are built by area rather than by screen. You can take a county for a day hike or an entire state for a season, and a downloaded pack never expires or asks you to renew. The free cell-coverage layer shows where each carrier’s signal stops, which is worth checking before you tell someone when to expect a call.
Walking is the same map with a gentler filter — the Walk activity keeps footways and paths and leans on parks and local land.
What’s on the map for hikers
- Trail networkFree
Named trails from OpenStreetMap and agency data, filtered to footways, paths and tracks when Hike is selected.
- Trailheads, parking and restroomsFree
Access points and the facilities at them.
- Contours and hillshadeFree
Topographic lines and shaded relief, with an elevation profile on every trail.
- Public landsFree
National forest, BLM, park, state and local land boundaries.
- WaterfallsFree
Named falls and cascades from the USGS national dataset.
- Cell coverageFree
Signal maps for AT&T, T-Mobile and Verizon.
- Active firesFree
Current wildfire perimeters and detections. Live data — needs signal to refresh.
- Slope, aspect and 3D terrainPro
Analytical terrain for route-finding off trail. Web map only.
Free means free: offline downloads, recording and safety features have no cap and no expiry. See exactly what Pro adds.
Hiking near me
Open the map and it centres on where you are, with every trailhead around you already drawn. Open the map, or type your town below to go straight to the named trails closest to it.
Find hiking trails by state
Every state has its own ranked list of named hiking trails, and every county and town below it has a page of its own.
Questions about hiking maps
- Are the offline hiking maps really free?
- Yes. Offline downloads, GPS recording and emergency location sharing are free for everyone, with no cap on how much you download and no expiry. Pro adds property parcels and analytical terrain; it is not required to use the map offline.
- Does GPS work without cell service?
- Yes. A phone’s GPS receiver does not need a data connection. With a pack downloaded, the map, the trails and your position all work in airplane mode.
- Where does the trail data come from?
- Trail geometry and names come from OpenStreetMap and agency datasets, rebuilt weekly. Elevation comes from the USGS 3D Elevation Program. If a trail is wrong or missing, the FAQ explains how to report it.
The full FAQ covers offline packs, recording, subscriptions and data sources.