Building a community-driven Shared Stewardship Model focusing on
Safer Trails ~ Greater Access ~ Trail Etiquette
We recruit and organize volunteers of all ages and trail user group interests to support trail maintenance projects called Dig Days, which are planned, approved and managed by California State Parks
We help prepare Dig Day volunteers for standards-based trail work and rewarding stewardship experiences through our peer-reviewed 1) Resources Library safety and maintenance handbooks and 2) Learning Center instructional videos
We welcome all trail user groups and individuals to help build a sustainable, results-driven Shared Stewardship model with California State Parks
Trails Are Common Ground
Since October 2023, more than 800 Dig Day volunteers have logged more than 5,000 hours servicing 10 miles of actual trail tread at Mount Diablo State Park
On average, 55% of Dig Day volunteers are Hikers or Trail Runners, and 45% are Off-road Cyclists (MTB or Gravel Bike)
Subscribe to our e-newsletter for
Dig Day alerts and related trails advocacy updates
We do not share your contact information, and we strive to send out 15 or less e-newsletters annually
Learn How You Can Support Us
Open Space Trails Alliance (DBA, Mount Diablo Trails Alliance) - is a 501(c)(3) tax-exempt nonprofit organization that is 100% volunteer powered. Federal Tax ID is 99-4480469
To learn how you can support our Shared Stewardship mission and goals, please visit our Dig Days and Donate pages
