Ice Mountain is a mountain ridge and algific talus slope that is part of a 149-acre (60 ha) preserve near the community of North River Mills in Hampshire County, West Virginia, United States. It was designated a National Natural Landmark in 2012.

The North River is a tributary of the Cacapon River, belonging to the Potomac River and Chesapeake Bay watersheds. The river is located in Hampshire and Hardy counties in the U.S. state of West Virginia's Eastern Panhandle. The mouth of the North River into the Cacapon is located at Forks of Cacapon. From its headwaters to its mouth, the North River spans 52.4 miles (84.3 km) in length.