Bruce Grubbs
Backpacker magazine's Using a GPS: Digital Trip Planning, Recording, and Sharing (Backpacker Magazine Series)
Hiking Arizona: A Guide to the State's Greatest Hiking Adventures
The Creaky Knees Guide Arizona: The 80 Best Easy Hikes (Creaky Knees Guides)
Best Easy Day Hikes Palm Springs and Coachella Valley
Best Easy Day Hikes Palm Springs and Coachella Valley
Using Gps: Gps Simplified for Outdoor Adventurers (Kestrel)
Best Hikes Near Phoenix (Best Hikes Near Series)
Best Easy Day Hikes Flagstaff