Columbia Airport is a public airport

Airport

An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...

 located one mile (1.6 km) southwest of the central business district

Central business district

A central business district is the commercial and often geographic heart of a city. In North America this part of a city is commonly referred to as "downtown" or "city center"...

 of Columbia

Columbia, California

Columbia is a former California Gold Rush boomtown located in the Sierra Nevada foothills. The central portion of the town is preserved as a California state historic park and a National Historic Landmark that preserves the original, gold-rush-town flavor of the town, once dubbed the "Gem of the...

, in Tuolumne County

Tuolumne County, California

Tuolumne County is a county in the Sierra Nevada of the U.S. state of California. The northern half of Yosemite National Park is located in the eastern part of the county. As of the 2010 census, the population was 55,365, up from 54,501 at the 2000 census...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. It is owned by the County of Tuolumne.

Facilities and aircraft

Columbia Airport covers an area of 356 acres (144.1 ha) which contains two runway

Runway

According to ICAO a runway is a "defined rectangular area on a land aerodrome prepared for the landing and take-off of aircraft." Runways may be a man-made surface or a natural surface .- Orientation and dimensions :Runways are named by a number between 01 and 36, which is generally one tenth...

s: 17/35 is asphalt

Asphalt

Asphalt or , also known as bitumen, is a sticky, black and highly viscous liquid or semi-solid that is present in most crude petroleums and in some natural deposits, it is a substance classed as a pitch...

 paved and measures 4,670 x 75 ft (1,423 x 23 m), and turf

Grass

Grasses, or more technically graminoids, are monocotyledonous, usually herbaceous plants with narrow leaves growing from the base. They include the "true grasses", of the Poaceae family, as well as the sedges and the rushes . The true grasses include cereals, bamboo and the grasses of lawns ...

 runway 11/29 measuring 2,600 x 100 ft (792 x 30 m).

For the 12-month period ending December 31, 2001, the airport had 46,020 aircraft operations, an average of 126 per day: 96% general aviation

General aviation

General aviation is one of the two categories of civil aviation. It refers to all flights other than military and scheduled airline and regular cargo flights, both private and commercial. General aviation flights range from gliders and powered parachutes to large, non-scheduled cargo jet flights...

, 4% air taxi

Air taxi

An air taxi is an air charter passenger or cargo aircraft which operates on an on-demand basis.-Regulation:In the United States, air taxi and air charter operations are governed by Part 135 of the Federal Aviation Regulations , unlike the larger scheduled air carriers which are governed by more...

 and <1% military. There are 243 aircraft based at this airport: 95% single engine, 2% multi-engine, 2% helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

s and 1% ultralight.