We're wrapping up the final steps of our Black Diamond Mines Regional Preserve stairs and safety project! Once the project is complete, mine tours will be more enjoyable and safer for the public. New stairway and extended tours open March 10. Tours are available weekends March-November with advance reservations available. Tour participants must be 7 years or older. | East Bay Regional Park District

Haunted? Why East Bay's Black Diamond Mines Are So Spooky To Some

Explore the hidden history of the Black Diamond Mines

Explore the hidden history of the Black Diamond Mines

**Trail Rescue-Black Diamond Mines** This morning, CHP H-32 responded with Contra Costa Fire and East Bay Regional Parks to a report of an injured hiker on a trail. H-32 responded as firefighters made access to the hiker. Once located the hiker was treated and placed into a rescue harness. H-32 hoisted the patient from the trail and transported her to a waiting AMR ambulance. Contra-Costa Fire-District | CHP - Golden Gate Division Air Operations

Just past the “White Witch” point inside Black Diamond Mines, there’s a lowkey hidden trail cut that locals call Sycamore Falls — and if you didn’t know it existed, you’d never believe it was Antioch. The canyon suddenly opens up into this shaded pocket filled with tall sycamores, cool air, and damp rock walls that look completely out of place compared to the dry East Bay hills around it. The water pours down a dark sandstone face in a clean drop, splashing into a small natural basin that stays