Ordnance Annex is the name of a US naval base situated in the United States territory of Guam, which used to be known as Naval Magazine, Guam. The base is situated on the south-central section of the island and occupies an area of 8,800 acres (36 km2).
Coordinates: 13°22′26.35″N 144°41′23.55″E / 13.3739861°N 144.6898750°E