Naval Outlying Landing Field (NOLF) Imperial Beach (IATA: NRS, ICAO: KNRS, FAA LID: NRS) is a United States Navy facility for helicopters, situated on 1,204 acres (5 km2) approximately 14 miles (23 km) south of San Diego and within the city limits of Imperial Beach, California.

The mission of NOLF Imperial Beach is to handle the overflow of helicopter squadron traffic (VFR and IFR) from NAS North Island.

In 1917, the United States Army established Aviation Field on the current site of OLF Imperial Beach.

In 1951, Ream Field Imperial Beach became home to its first helicopter squadron when HU-1 moved aboard.

The mission of NAS Imperial Beach was to support operations of Naval aviation activities and units.

On August 1, 1974, NAS Imperial Beach was once again re-designated as a Naval Auxiliary Landing Field and in October 1975 was designated an Outlying Field (OLF Imperial Beach) and presently operates as a branch of Naval Base Coronado.

When Imperial Beach was re-designated as an Outlying Field, this put a halt to a master plan developed on 1967 to determine the facilities required to support units assigned by the Chief of Naval Operations.

In 1968, the control tower and operation building was completed, along with a new Enlisted Men's Club and a $1.2 million hangar was opened.

In the early 2000s, naval activities external to Naval Aviation at OLF Imperial Beach were increased by the establishment and homeporting of Coastal Riverine Group ONE (CORIVGRU 1)[3] and one of its subordinate squadrons, Coastal Riverine Squadron THREE (CORROVRON 3)[3] at Imperial Beach.