MDIA Mountain Guide
Welcome to the MDIA Mountain Guide! Your digital companion for exploring Mount Diablo. Use this app on the mountain to explore trails, learn about native species, dig deeper with QR codes, and interact with our Education Center. Add it to your home screen to take the mountain with you!
Browse Trails
Find your perfect hike from 50+ trails with rich details, section filters, walking directions, and trail maps
Mountain Conditions
Check real-time weather, air quality, and webcams for Summit, Rock City, and Mitchell Canyon
Plant & Wildlife Guide
Browse common species or identify birds, butterflies, bees and wildflowers with your camera
Be Aware
Learn about common hazards like poison oak, ticks, rattlesnakes, and mountain lions
My Nature Log
Track and review your observations from your visits to the mountain
Scan QR Codes
Scan QR codes you find in the park and read content by our mountain experts
Education Center
Visit our new interpretive center at Mount Diablo State Park
Park Information
Access important information about the park from the State Parks website, including safety information and trail-issue reporting
About MDIA
Learn more about Mount Diablo Interpretive Association and how to get involved!