You Can Make an Impact

Donate today and support a volunteer-powered Shared Stewardship model focusing on Better Trails and Greater Access

3% Cover the Fee

Your Tax-Deductible Gift Supports

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    Open Space Trails Alliance (DBA: Mount Diablo Trails Alliance) - is a 501(c)(3) tax-exempt nonprofit organization that is 100% volunteer powered. All donations directly support the trails. Federal Tax ID is 99-4480469

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    Dig Day infrastructure support, including CRM software and web operations to recruit and organize volunteers. Other Dig Day funding needs include rare plant surveys, tools procurement, and food/refreshments for volunteers

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    Better trails (e.g., more accessible, durable and sustainable conditions) for park visitors seeking high-quality recreational experiences. Trails are integral to fitness, wellness and other immersion activities

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    Access advocacy to improve and expand circulation and connector options for more trail users, especially the large, fast-growing community of off-road cyclists (MTB and Gravel Bike)

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    Change in use (CIU) evaluation to improve access ratios across the trail user groups. Funding needs can include environmental impact studies (CEQA) and rare plant surveys

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    Trail etiquette education and bike bell giveaways to improve awareness of all trail user groups and each other’s potential impact on flora, fauna, wildlife and watershed resources

 FAQs

  • To mobilize volunteers to support Shared Stewardship projects at Mount Diablo State Park and advocate for:

    • Better trails for all park visitors, focusing on accessibility, durability and sustainability

    • Greater trails access for off-road cyclists (MTB and Gravel Bike)

    • Trail etiquette education and awareness (e.g., responsible recreation)

  • Since launching in October 2023, MDTA has worked with California State Parks (CSP) to build a sustainable and impactful Shared Stewardship model.

    CSP reviews, approves and manages all Dig Day trail maintenance projects. MDTA recruits and educates volunteers of all ages and interests to help maintain trails at Dig Days using proven techniques. The impact so far includes:

    • 10+ miles of trail improvements

    • 900+ volunteers involved

    • Over 5,300 hours of volunteer-powered trail maintenance at Dig Days

  • Your generous gift supports the implementation and long-term achievement of the three main goals of MDTA’s Trails 2030 Strategic Plan:

    1. Regular trail maintenance program

    2. Greater access to singletrack trails for more state park visitors

    3. Better trail etiquette practices and awareness

    1. Sustainable trails stewardship: Maintain and repair 20+ miles of trails at Mount Diablo State Park by 2030

    2. Greater access: Propose 10+ miles of singletrack trails by 2030 to be evaluated for change in use (CIU) to multi-use bike-friendly, which can improve 1) circulation and connector options and 2) general safety conditions (e.g., get more MTB and Gravel Bike cyclists off the roadway)


      Currently, hikers/runners and equestrians can access 100% and 99.5%, respectively, of Mount Diablo State Park’s 52.5 miles of singletrack trails.

      In contrast, off-road cyclists (MTB and Gravel Bike) can access only 18% of singletrack trails.

    3. Responsible recreation: Promote trail etiquette education and bike bell giveaways to improve all trail user groups’ awareness of each other and their potential impact on flora, fauna, wildlife and watershed resources

  • Yes. Our legal name is Open Space Trails Alliance. On the Benevity website, search for that legal name or Mount Diablo Trails Alliance to make a tax-deductible donation, which also can be eligible for employer matching programs.

  • Yes. Please mail a check made payable to Open Space Trails Alliance to:

    Mount Diablo Trails Alliance
    P.O. Box 812
    Diablo, California 94528

  • Contact us to learn more about opportunities for greater impact, include corporate-sponsored Dig Days, Matching Donor drives, or stock-based donations.

    Please email: info@mountdiablotrailsalliance.org