Adventure Projects is hiring a web engineer to join us in Boulder, CO
Trail Run Project Logo

Catherine Tunnel, the ruins of an old mining tunnel.

Rate Photo
     Clear Rating
  2.3 from 3 votes

Catherine Tunnel, the ruins of an old mining tunnel.  

0 Comments

Nearby Photos

Nearby Trails

Quicksilver History Loop

8.0 mi 12.9 km
 6 FEATURED
Almaden Valley, CA

Catherine Tunnel Spur

0.2 mi 0.3 km
Connector
Almaden Valley, CA