Impact Report and Maps
Photo: David Cervenka Photography.
Dig Day volunteers have serviced 12 miles of trail tread since Oct. 2023, donating more than 6,200 hours!
View our Winter 2026 Impact Report showcasing Dig Days’ positive impact helping California State Parks implement the Trails Stewardship goals of the 2016 Road and Trail Management Plan (RTMP) for Mount Diablo State Park.
Trails Serviced by Dig Days
Northwest Territory Trails
Buckeye (2024, 2025), Camel Rock (2024, 2025), Castle Rock (2024), Diablo Ranch (2025), Little Yosemite (2024), Mothers (2026), Secret (2023), and Sunset (2023).
Yellow air-brushing highlights serviced trail sections by a Dig Day trail maintenance event.
Upper Mountain Trails
Lower Juniper (2024), Oak Knoll (2024), and Upper Summit (2024).
Yellow air-brushing highlights serviced trail sections by a Dig Day trail maintenance event.
Rock City Trails
Devil’s Slide (2025), Lower Summit (2026), and Staircase (2025).
Yellow air-brushing highlights serviced trail sections by a Dig Day trail maintenance event.
Old Finley Road Trails
Oyster Point (2023, 2025).
Yellow air-brushing highlights serviced trail sections by a Dig Day trail maintenance event.