| Lookout Mountain | |
| Elevation Ft: | 1165 |
| Elevation Ref: | [1] |
| Location: | Sussex County, New Jersey, U.S. |
| Coordinates: | 40.9473°N -74.6588°W[2] |
| Topo: | USGS Stanhope |
| Easiest Route: | Road |
Lookout Mountain is a mountain in Sussex County, New Jersey. The summit rises to 1165feet, and is located in the Borough of Hopatcong, overlooking the River Styx, a bay of Lake Hopatcong. It is part of the New York–New Jersey Highlands of the Appalachian Mountains.