| Marble Mountain | |
| Elevation Ft: | 771 |
| Elevation Ref: | [1] |
| Location: | Warren County, New Jersey, U.S. |
| Coordinates: | 40.7309°N -75.161°W[2] |
| Topo: | USGS Easton |
| Easiest Route: | Hiking |
Marble Mountain is a mountain in Warren County, New Jersey. The summit rises to 771feet, and is located in Harmony and Lopatcong Townships, overlooking the Delaware River; along with Chestnut Hill on the Pennsylvania side, Marble Mountain forms Weygadt Gap or the Little Water Gap.[3]
It is part of the New York–New Jersey Highlands of the Appalachian Mountains, although somewhat isolated to the west of the main body of the Highlands.[4]