



📱GPS fails deep on trails, grab a map
⛏️Reserve mine tours in advance
This 1995 monument honors the coal miners who worked the Mt. Diablo foothills from 1860 to 1911, a tribute to Black Diamond's gritty industrial past.
Historic mining tribute
Coal country heritage
Outdoor monument site
E Clampus Vitus dedication




📱GPS fails deep on trails, grab a map
⛏️Reserve mine tours in advance
This 1995 monument honors the coal miners who worked the Mt. Diablo foothills from 1860 to 1911, a tribute to Black Diamond's gritty industrial past.
Historic mining tribute
Coal country heritage
Outdoor monument site
E Clampus Vitus dedication