Address: Parking lot, Black Diamond Trail, Clayton, CA 94517, USA
Eugene Abellon
I really like how you can have your dog off leash on the trails. My dog had so much fun running up the trails.
Joe O'Leary
Black Diamond Mines is an amazing place to mountain bike. In my 30 years of mountain cycling, I have encountered some amazing wildlife, especially if you can get up there early. Now, the park doesn't officially open until 8 AM, but it takes …
Hernan Padron
Nice easy walk!
cp leblow
Nice climb from Clayton all the way into Black Diamond Mines Park. Hike as an out and back on the same dirt road. All up hill from Clayton side. About 6 or 7 parking spaces at trail head. Dogs okay off leash except at parking lot but beware …
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