Columbia Airport (COA)

Columbia Airport (COA/O22) is a premier public-use aviation facility located in Tuolumne County, California, serving the historic Gold Rush town of Columbia. It is widely recognized as one of the most popular 'fly-in' destinations in the Western United States, being situated directly adjacent to Columbia State Historic Park. The airport plays a vital role in supporting regional tourism, private aviation, and emergency services, particularly as a base for aerial firefighting operations in the Sierra Nevada foothills.

The terminal building is a charming and functional facility that reflects the historic character of the surrounding area. Inside, visitors will find a welcoming lobby area, a pilot's lounge with comfortable seating, and clean restroom facilities. While the airport does not support scheduled commercial airline service, the terminal is designed to handle the needs of recreational aviators and their passengers efficiently. A unique feature of the airport is the adjacent campground specifically for pilots, allowing for a seamless transition from flight to an outdoor mountain experience. Amenities at the terminal include high-speed Wi-Fi and a selection of local historical information.

Operational infrastructure at Columbia Airport includes two primary runways, with the main paved runway (17/35) measuring 4,673 feet in length and a parallel grass runway (17G/35G) measuring 2,600 feet, which is a rare and valued feature for taildragger pilots. The airport also offers comprehensive support services, including 24-hour self-service fuel (100LL and Jet A) and hangar storage. For ground transportation, the airport is just a short walk from the historic district of Columbia, and taxi or ride-share services are readily available to transport visitors to the nearby city of Sonora or other local attractions in the Mother Lode region.