Links
California State Parks/Columbia State Historic Park
http://www.parks.ca.gov/?page_id=552
Columbia Chamber of Commerce
www.visitcolumbiacalifornia. com
Columbia City Hotel
www.columbiacalifornia.com/historicstructures_files/cityhotel.html
City of Sonora, California
www.sonoraca.comTuolumne County Visitors Bureau www.yosemitegoldcountry.com
Calaveras Big Trees State Park http://www.parks.ca.gov/?page_id=551
Railtown 1897
http://www.railtown1897.org/
Indian Grinding Rock State Historic Park
www.parks.ca.gov/indiangrindingrock