The irregularly shaped hamlet of Calverton rests mostly in the town of Riverhead, with a sleepy area set within the town of Brookhaven. Though Calverton is technically landlocked, only a thin strip of land (belonging to Baiting Hollow and Wading River) on the north side of Sound Avenue separates it from Long Island Sound, meaning there is easy access to the North Shore sands of Wildwood State Park. The south end of the hamlet toward Manorville contains parts of Robert Cushman Murphy County Park and Long Island State Pine Barrens Preserve. Since the mid-20th century, the U.S. government has maintained a presence, with an airfield and plant once leased to airplane manufacturer Grumman, and a widely known national cemetery. Years ago, the Navy had plans for a major airport, but the site’s current Calverton Executive Airpark, now owned by the town of Riverhead, isn’t particularly busy. The development of the former Navy land has been under discussion for the better part of two decades.