Monomoy usually refers to Monomoy Island off of the coast of Cape Cod, Massachusetts.
Monomoy has no human residents, no electricity, no paved roads; today, in fact, the only reminder of Monomoy's habitation is the Monomoy Point Light, which guided ships from 1828 to 1923.
The Monomoy Island Gunnery Range was a former Air Force gunnery range for aviators, located on Monomoy Island, in Chatham, Massachusetts and in use circa 1942-1950.