Marine Corps Outlying Field (MCOLF) Camp Davis is a military use airport northeast of the central business district of Holly Ridge, in Onslow County, North Carolina, United States. It is used as a training facility by the United States Marines of Camp Lejeune and Marine Corps Air Station New River.

Onslow County is a county located in the U.S. state of North Carolina. As of the 2020 census, the population was 204,576. Its county seat is Jacksonville. The county was created in 1734 as Onslow Precinct and gained county status in 1739. Onslow County comprises the Jacksonville, NC Metropolitan Statistical Area. The southern border is the coast of the Atlantic Ocean.