Come celebrate Halloween on the trails of Black Diamond Mines; costumes are welcome! We’ll climb to Rose Hill Cemetery and beyond.Come celebrate Halloween on the trails of Black Diamond Mines…
All Discover Diablo hikes are subject to, and will honor, all applicable COVID-19–related restrictions in place for our area.Join founding Save Mount Diablo Board member and retired EBRPD General Manager…
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Includes trails and parks on and around Mount Diablo and Los Vaqueros watershed.
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