Roughlock Falls Nature Area[1] is a nature area in Lawrence County, South Dakota, in the United States.

The area is managed by the South Dakota Department of Game, Fish, and Parks.

Birdwatching, fishing, hiking, and snowmobiling are popular activities within this area.

[2] The area is about 15 miles (24 km) southwest of Spearfish or about 14.5 miles (23.3 km) west of Lead, just west of Spearfish Canyon Scenic Byway (U.S. 14A).

Wildlife found in the area include: Elk, Bald eagle, White-tailed deer, Mule deer, Coyote, Beaver, Bighorn sheep, Mountain goat, and Mountain lion.