Great South Bay topographic map

Average elevation: 35 m

Average elevation: 40 m

Manorville is in the center of Long Island with no access to the water. It lies partially on the Ronkonkoma terminal moraine, which creates some slightly rolling topography, especially in the central portion of the hamlet. The glacial topography of the area features several kettle hole ponds, the most…

Average elevation: 22 m

Average elevation: 31 m

Average elevation: 24 m

Average elevation: 40 m

Average elevation: 9 m

Average elevation: 26 m

Average elevation: 5 m

Average elevation: 14 m

Average elevation: 33 m

The actual lake, Lake Ronkonkoma, adjacent to the CDP, is the largest lake on Long Island. The land surrounding one side of the lake is in the jurisdiction of the Town of Islip. The elevation of the lake surface is given as 55 feet (17 m) on the most recent USGS map, but as the lake is a "groundwater lake",…

Average elevation: 37 m

Average elevation: 33 m

Average elevation: 11 m

The actual lake, Lake Ronkonkoma, adjacent to the CDP, is the largest lake on Long Island. The land surrounding one side of the lake is in the jurisdiction of the Town of Islip. The elevation of the lake surface is given as 55 feet (17 m) on the most recent USGS map, but as the lake is a "groundwater lake",…

Average elevation: 37 m

Average elevation: 33 m

Average elevation: 14 m

Average elevation: 10 m

Average elevation: 14 m

Average elevation: 11 m

Average elevation: 28 m

Average elevation: 29 m

Average elevation: 40 m

Average elevation: 11 m

Average elevation: 15 m

Average elevation: 31 m

Average elevation: 25 m

Average elevation: 9 m

Average elevation: 26 m

Average elevation: 14 m

Average elevation: 9 m

Average elevation: 24 m