Naval Outlying Landing Field San Nicolas Island or NOLF San Nicolas Island (ICAO: KNSI, FAA LID: NSI) is a military airport located on San Nicolas Island, in Ventura County, California, United States. The airport is administered by Naval Base Ventura County^[1] and is one of several Naval Outlying Landing Fields operated by the US Navy.

Naval Outlying Landing Field San Nicolas Island
IATA: none ICAO: KNSI FAA LID: NSI
Summary
Airport type	Military
Operator	US Navy
Location	San Nicolas Island, Ventura County, California
Elevation AMSL	506 ft / 154.2 m
Coordinates	33°14′23″N 119°27′29″W / 33.23972°N 119.45806°W / 33.23972; -119.45806
Runways
Direction Length Surface ft m 12/30 10,002 3,049 PEM

External image
San Nicolas from the airfield approach [dead link]

The airport's ICAO identifier is KNSI.^[2] Although most U.S. airports and airbases use the same three-letter location identifier for the FAA and IATA, NOLF San Nicolas Island is assigned NSI by the FAA,^[3] and the IATA has assigned NSI to Nsimalen International Airport in Yaoundé, Cameroon.^[4]

US Navy took over the Landing Field in January 1933 from the Civil Aeronautics Authority. Civil Aeronautics Authority built the two airstrips in the 1930s as two emergency dirt landing strips.