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Trails Challenge

The 2021 Trails Challenge kicks off on April 1st. Be sure to register now and stay tuned for details on this year's Trails Challenge T-Shirt pickup.

Register Now 

Spring and Summer offer some of the best opportunities to explore the trails of San Ramon and discover the health benefits of outdoor recreation! The San Ramon Trails Challenge is a self-guided program that encourages you to hike five featured trails anytime from April to September. Enjoy the trails solo, with your dog, with family, with friends or with co-workers. The Trails Challenge is free to participate and designed for all fitness levels.

Logo for San Ramon Trails Challenge


Please utilize the links below to download more information on the 2021 San Ramon Trails Challenge:  2021 Trails Guidebook

After completing five out of the seven featured trails, please submit your Trails Challenge Completion Log. Once submitted, your name will be added to the list of this year's list of Trails Challenge Finishers!



Karen Rathmann

Janice Rathmann


Alexander Rathmann


Zachary Rathmann




This year trail maps and turn by turn directions can be found on the  San Ramon Trails Mobile App, powered by OuterSpatial.  This free app that allows users to access essential trail information like trailhead locations, parking, elevation maps, pictures and points of interest in San Ramon, Northern California and beyond. Maps are also downloadable for offline access in areas without cellular coverage. All seven featured trails included in the Trails Challenge are available on the OuterSpatial app, so download it today to start checking them out and get ready to hit the trails!

Download OuterSpatial by using the links below and get ready for the 2021 Trails Challenge! 

Download the OuterSpatial App Download the OuterSpatial App Download the OuterSpatial App

Use the following link to directly connect to the City of San Ramon Trail System within the OuterSpatial app:

City of San Ramon Trail System in OuterSpatial


City Park & Trail Map - Interactive Map & Downloadable Mobile App

Questions and feedback should be sent to