Yes, always bring a map and a compass and know how to use them. Consider bringing a GPS or satellite-based communication device such as SPOT or Garmin inReach. Check out our Maps page for a GPS based map of the entire trail. The detailed descriptions in the guidebook can also be helpful in keeping you on track. Because weather and trail conditions are always changing, it is best to research your route from as many sources as possible; don’t rely on a single source and be prepared to improvise. 

Another option is the Great Divide Trail App by FarOut Guides, a GPS map-based hiking guide for smartphones and tablets. The App works in airplane mode. No mobile service or internet is required after initial setup. The app uses your device’s built-in GPS and downloaded topographic maps. We recommend that you always bring a paper map and compass even if you have the GDT App (because a map’s “battery life” is significantly longer than that of a smartphone).