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Black Diamond Mines Regional Preserve East Bay Regional Parks

Black Diamond Mines Regional Preserve East Bay Regional Parks. Northern California PEMA Field Trip/Hike Thursday, October 30, 2014. William E. (Bill) Motzer, PHD, PG, CHG Senior Geochemist Todd Groundwater bmotzer@toddgroundwater. http://www.ebparks.org/Parks/Black_Diamond. Mt. Diablo

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Black Diamond Mines Regional Preserve East Bay Regional Parks

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  1. Black Diamond Mines Regional PreserveEast Bay Regional Parks Northern California PEMA Field Trip/Hike Thursday, October 30, 2014 William E. (Bill) Motzer, PHD, PG, CHG Senior Geochemist Todd Groundwater bmotzer@toddgroundwater

  2. http://www.ebparks.org/Parks/Black_Diamond

  3. Mt. Diablo Coal Field 1860-1906 Nortonville Somersville Stewartville Judsonville West Hartley

  4. Nortonville: ca 1880

  5. Black Diamond Mines Regional Preserve Trail Map http://www.ebparks.org/Parks/Black_Diamond

  6. LOOP HIKE Total Distance: ~3.3 mi Total Ascent: ~680 ft Total Decent: ~755 ft Time: ~2.0 hours HIKE: Moderately Strenuous RAIN: Cancels Hike UNDERGROUND: OK

  7. Rosehill (Historic) Cemetery

  8. Geology Sullivan (2012)

  9. Capay Shale Sullivan and Sullivan (2007)

  10. Domengine Sandstone • R. Marvin Greathouse: Hazel-Atlas Mine • Near old Somersvilletownsite • 1922-1945 • High-quality silica sand

  11. Greathouse Portal: Visitor’s Center

  12. Coal Seam/Vein Black Diamond Vein: ~4.0 ft thick

  13. Inhabitants: Temporary and Permanent

  14. Recommend: When You Go… • Wear boots • Take sticks • Take water • Pull-over/Jacket

  15. Watch For… • Ixodes pacificus (Western Black-legged tick) • Active: November through April • May carry Lyme disease • Ticks • Rattlesnakes • Pies

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