If your GPS finds itself back at the truck more often than not, it's probably because you have the Roam Multi State SD Chip For Garmin GPS devices. This microSD chip comes pre loaded with all the information you need to know whether you're driving to a new trailhead or backpacking deep into a remote wilderness area. Great for hiking, backpacking, fishing, hunting, and road trips, your Garmin GPS will always be by your side when this chip is attached.Broken into two regions, the Rockies North option covers Idaho, Wyoming, and Montana, while the Rockies South region covers Utah, Colorado, Arizona, and New Mexico. No matter which chip you choose, each comes pre loaded with 24K topographic maps complete with color coded public lands marking land ownership, points of access, and campsites both developed and primitive. Detailed road and trail information provides names, numbers, type, and location of trailheads. The chip is also compatible with Garmin BaseCamp software for both Mac and PC, so you can transfer your tracks, waypoints, and other useful information to your computer.