Old Prospector Trail Loop in Irish Hills Natural Reserve in San Luis Obispo
San Luis Obispo | Trails Trail Rating:
Today the Irish Hills are like a gold mine for hikers, but the small mountain range in San Luis Obispo historically hosted several mines for chromium and mercury. The ruins of one of these mines can be visited on Old Prospector Trail, which opened in 2015 to join the growing group of trails in Irish Hills Natural Reserve. This hikers-only single track starts in Froom Canyon and is 0.9 miles... Read more.
By: Published: March 18, 2015 Last updated: May 3, 2017