- City Hotel and Fallon Hotel
Includes two historic Gold Rush-style hotels within the Columbia State Historic Park as well as a restaurant and live theater.
- 49er RV Ranch
Includes campsite details, a calendar of events, and rates. Serves Columbia State Historic Park.
- Columbia State Park
- Columbia Pine Cones
Wholesale supplier of pine cones, shells, botanicals, and wreathes from the mountains of California.
- Sons of the Desert, Tent #81: Them Thar Hills
Columbia, CA chapter of the International Laurel and Hardy Appreciation Society.