| South Mountain | |
| Elevation Ft: | 2467 |
| Location: | E of Haines Falls, New York, U.S. |
| Coordinates: | 42.1892°N -74.0517°W |
| Coordinates Ref: | [1] |
| Topo: | USGS Kaaterskill Clove |
| Map: | New York#USA |
South Mountain is a mountain located in Greene County, New York east of Haines Falls, New York. Located to the southwest is Roundtop Mountain. High Peak drains south into Kaaterskill Creek and north into North-South Lake.