US Naval Ordnance Testing Facility Observation Tower No. 2

US Naval Ordnance Testing Facility Observation Tower No. 2
U.S. National Register of Historic Places
US Naval Ordnance Testing Facility Observation Tower No. 2
Show map of North Carolina Show map of the US
Location	1000 blk. S. Anderson Blvd., Topsail Beach, North Carolina
Coordinates	34°22′53″N 77°36′47″W / 34.38139°N 77.61306°W / 34.38139; -77.61306Coordinates: 34°22′53″N 77°36′47″W / 34.38139°N 77.61306°W / 34.38139; -77.61306
Area	less than one acre
Built	1946 (1946)
Built by	Kellex Corporation; George & Lynch
MPS	US Naval Ordnance Test Facilities, Topsail Island MPS
NRHP reference #	93000911
Added to NRHP	September 14, 1993

US Naval Ordnance Testing Facility Observation Tower No. 2, also known as Queen's Grant Tower, is a historic building located at Topsail Island, Pender County, North Carolina. It was built in 1946 by Kellex Corporation, and is a reinforced concrete structure. The interior stairs have been removed. It was one of seven observation towers built to house carefully calibrated monitoring equipment for "Operation Bumblebee."

It was listed on the National Register of Historic Places in 1993.