National Directory of Trails / California / Antioch Trails

Black Diamond Mines Loop

Black Diamond Mines Loop is a 6.6 mile loop trail located near Antioch, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.


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  • 6.6 miles
  • Antioch, CA


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