San Francisco: Alameda Quicksilver County Park Loop

Take a self-guided tour of abandoned mine shafts and old miner homesteads on this 7.9-mile loop with breathtaking vistas of the San Francisco Bay and the Santa Cruz Mountains.
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Take a self-guided tour of abandoned mine shafts and old miner homesteads on this 7.9-mile loop with breathtaking vistas of the San Francisco Bay and the Santa Cruz Mountains.

Trail Facts

  • Distance: 12.1

Waypoints

AQC001

Location: 37.1739501953125, -121.825386047363

Hacienda trailhead; head W past gate and up switchbacks

AQC002

Location: 37.1759147644043, -121.826530456543

Straight @ 4-way

AQC003

Location: 37.1826515197754, -121.833084106445

R @ 3-way; quickly turn L onto Randol Trail, descending downhill

AQC004

Location: 37.1826667785644, -121.837753295898

Keep R @ Y.
Spur trail on L leads to old mine tunnel

AQC005

Location: 37.1852149963379, -121.84349822998

Veer L onto Santa Isabel Trail, hugging the wooded hillside

AQC006

Location: 37.186466217041, -121.84693145752

Bear L onto Randol Trail

AQC007

Location: 37.1925163269043, -121.855316162109

San Francisco Bay glistens on the NE horizon; turn L onto Prospect #3

AQC008

Location: 37.1889343261719, -121.860534667969

Turn L onto Mine Hill Trail; SW view to Mt. Umunhum (3,486 ft.)

AQC009

Location: 37.1811981201172, -121.852813720703

Straight @ 3-way; merge with Castillero Trail. Spur on L leads to mine shaft

AQC010

Location: 37.1753349304199, -121.845069885254

Rusty mine buildings on hillside; stay on Castillero

AQC011

Location: 37.178768157959, -121.840148925781

Old campsite; bear R onto Old English Camp Trail

AQC012

Location: 37.1761169433594, -121.837120056152

Straight @ 3-way, descending into Deep Gulch

AQC013

Location: 37.1761207580566, -121.837120056152

Turn R; head back to trailhead