Fodor's Expert Review Lost Horse Mine

The mine, one of about 300 developed within the current park boundaries, was among Southern California's most productive, generating 10,000 ounces of gold and 16,000 ounces of silver between 1894 and 1931. The 10-stamp mill is one of the best preserved of its type in the park system. The site is accessed via a moderately strenuous 4-mile hike. Mind the signs, and note that parking, which is at end of the dirt access road, is limited.