Northwest Trails is a mapset of trails designed for upload to any map-enabled Garmin GPS receiver. It is more than just a mapset, though; it is also a community effort initiated to record and collect GPS data for trails in the Northwest (Washington, Idaho, Oregon, Montana, Wyoming, Alaska, British Columbia and Alberta) and provide that data for general public use.
The mapset currently covers the states of Washington, Idaho, Oregon, Montana, Wyoming, Alaska, British Columbia and Alberta (see coverage map below). However, since government GIS sources of unknown quality and completeness are the source of much of this data, there is a significant need for not only additional data but also verification of virtually all of these trails by GPS-wielding users. The intent is, over time, for the coverage of the mapset to expand to include thorough GPS-verified coverage of all trails located in the Pacific Northwest.