Event · Outdoors

Green Friday at the Black Diamond Mines Greathouse Visitor Center

When
Fri, Nov 27 · 10:00 AM
Where
Black Diamond Mines Regional Preserve – Greathouse Visitor Center5175 Somersville Road, Antioch, CA 94509Open in Google Maps ↗
Ages
All ages
Cost
$5 parking fee when entry kiosk is staffed.No registration required; drop-in.
Organizer
East Bay Regional Park District

On the day after Thanksgiving, the Park District's Green Friday invites families outdoors instead of to the mall. At Black Diamond Mines Regional Preserve, the underground Greathouse Visitor Center opens so visitors can learn about the area's coal-mining history and chat with naturalists about the parks. The quarter-mile route from the upper parking lot at the end of Somersville Road is partly paved and partly gravel with a mild incline. All ages and leashed dogs are welcome; drop in, no registration. A $5 parking fee applies when the entry kiosk is staffed.

Visit the official site ↗
Official sources checked2026-10-16

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ActiveNet 60494; start time from calendar card, end time not published.

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