Custer Gallatin National Forest — Custer West — Forest Service forest map
by Forest Service Maps (public domain) · Montana, US
Free
A free GeoPDF for offline GPS in the Cartahaven app, with free updates. How it works offline

USDA Forest Service forest map of Custer Gallatin National Forest - Custer West, Montana: the current Forest Service base map, showing Forest Service roads and trails with their numbers, national forest land and other ownership, campgrounds, trailheads and other recreation sites. Georeferenced, so your GPS position shows on it offline. For where you may drive, use the forest's Motor Vehicle Use Map.
Public domain map from the USDA Forest Service (Forest Service Digital Maps). This store is not affiliated with or endorsed by the Forest Service.
What you get
- Your GPS position on the map. A blue dot on this official sheet shows where you are.
- Works with no signal. Download it once; the map and your GPS position keep working with no cell signal.
- Tracks, placemarks and photos. Record where you go, drop pins, and export GPX, KML or GeoJSON.
- Free updates. When a new edition is published here, it’s yours at no cost.
- 1Tap “Get this map”: it’s added to your free account.
- 2Open the Cartahaven app on your phone and sign in.
- 3Tap “Get my maps”. It’s on your phone, ready offline.
The app runs on iPhone, Android and in desktop browsers. Install it · How offline GPS works
Where this map covers
More maps of Custer Gallatin National Forest and Montana.
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Version history
Version 1 · Nov 6, 2026 · 37.3 MB