Yellowstone Lake State Park
| Yellowstone Lake State Park | |
|---|---|
IUCN category V (protected landscape/seascape)  | |
![]() Yellowstone Lake  | |
![]() ![]()  | |
| Location | Lafayette County, Wisconsin, United States | 
| Coordinates | 42°45′48″N 89°58′40″W / 42.76333°N 89.97778°W | 
| Area | 968 acres (392 ha) | 
| Established | 1970 | 
| Governing body | Wisconsin Department of Natural Resources | 
Yellowstone Lake State Park is a state park in Lafayette County, Wisconsin, United States. The park surrounds the 455-acre (184 ha) Yellowstone Lake, a reservoir along the Yellowstone River. It is included in the 4,047-acre (1,638 ha) Yellowstone Wildlife Area. 
The park has 128 campsites and 5 group sites. There is a swimming area with sand beach, picnic areas, playgrounds, and a boat launch. Boating and fisghing, particularly for bluegill, largemouth bass, walleye and channel catfish is popular, with some northern pike and muskellunge. The adjacent 4,000-acre wildlife area offers extensive horse trails and a shooting range.
The man-made lake is sustained by the Yellowstone River, a tributary of the Pecatonica River which enters on the northwest side, and the man-made dike built on the southeast side. The dam at the southern end of the dike is crossed by a narrow, steel catwalk, from which fishing is not allowed.


