It is bounded to the north by the Asan Inland Unit of War in the Pacific National Historical Park, to the northeast by Asan's Maina community in the Fonte River valley, to the west by the adjacent Nimitz Hill CDP across the village boundary in Piti, and to the south by the Fonte River and uninhabited inland highlands.

The Fonte Plateau Unit of War in the Pacific National Historical Park is located in the southeast of the community.

The NRHP-listed Fonte River Dam, often used as a water recreation area, is located in the southeast of Nimitz Hill Annex.

Commander, U.S. Pacific Fleet Chester W. Nimitz briefly made his headquarters at the Japanese naval communications center at Fonte Plateau in January 1945.

On August 6, 1997 Korean Air Flight 801 crashed immediately south of the Nimitz Hill Annex area.