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California > Bay Area > San Jose > Almaden Quicksilver C…
The Santa Cruz Mountains with Mt. Umunhum, 3,489 ft., at the far left, its summit in the clouds. Seen looking southwest on Castillero Trail on a bright, crisp December afternoon.
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This is the view approaching the remnants of April Trestle on April Trail. Mining ore cars brought cinnabar (mercury ore) out of the April Tunnel at the left end of April Trestle.
Catherine Tunnel, the ruins of an old mining tunnel.
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Joan Pendleton
Dec 19, 2021 near Almaden Valley, CA
“The Santa Cruz Mountains with Mt. Umunhum, 3,489 ft., at the far left, its summit in the clouds. Seen looking southwest on Castillero Trail on a bright, crisp December afternoon.”  

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Nearby Photos

The Santa Cruz Mountains with Mt. Umunhum, 3,489 ft., at the far left, its summit in the clouds. Seen looking southwest on Castillero Trail on a bright, crisp December afternoon.
Catherine Tunnel, the ruins of an old mining tunnel.
A winter day on Castillero Trail.
View looking northwest up the peninsula from Castillero Trail.
The Old San Cristobal Mine Tunnel hides right within the hillside.
The entrance to the Old San Cristobal Mine Tunnel is eerie, yet exciting.
Mine Hill Trail winds through hilly wooded terrain in east Quicksilver Park.
This is the view approaching the remnants of April Trestle on April Trail. Mining ore cars brought cinnabar (mercury ore) out of the April Tunnel at the left end of April Trestle.
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Nearby

Quicksilver History Loop

8.0 mi 12.9 km
 13 ROUTE
Almaden Valley, CA

Mine Hill Trail

7.1 mi 11.4 km
 4
Almaden Valley, CA

Castillero Trail

1.3 mi 2.0 km
 1
Almaden Valley, CA
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