Numerous trails for hiking and biking are available on the slopes of Mount Diablo.

• Mount Diablo State Park - California State Parks.
• Mount Diablo Interpretive Association
• Save Mount Diablo
• Mount Diablo : Climbing, Hiking & Mountaineering : SummitPost
• Peakbagger - Mount Diablo. Highest point in Contra Costa County (elevation 3849 ft.).
• Juniper Trail, Mount Diablo St Pk - trailbehind
• Eagle Peak Trail : SummitPost
• Bay Area Hiker: Mount Diablo State Park
• On the Tarantula Trail - Diablo Magazine - October 2011

Donner Canyon Waterfall Loop Trail

This moderately strenuous trail is a delight in the spring when waterfalls and wildflowers can be seen.

• Waterfall loop at Mount Diablo State Park - EveryTrail guide
• Donner Canyon Waterfalls, Mt Diablo St Pk - BRT Insights 04april2012
• Donner Canyon Waterfalls - Hiking trip - elremaro 01april2012

Waterfalls in Donner Canyon are best just after a rainfall.

Waterfall Loop Trail provides views of numerous small waterfalls.

Viewing down Donner Canyon towards City of Clayton and Suisun Bay to the north.

See more: Hiking trails in Contra Costa County.