| Little Fork River | |
| Pushpin Map: | Minnesota |
| Pushpin Map Caption: | Mouth of the Little Fork River |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Minnesota |
| Subdivision Type3: | County |
| Subdivision Name3: | Koochiching County, St. Louis County |
| Length: | [1] |
| Mouth: | Rainy River |
| River System: | Rainy River |
| Basin Size: | 1,179,520 acres |
The Little Fork River (French: Rivière Petite Fourche; Ojibwe: Baaganowe-ziibi) is a river of Minnesota. It flows into the Rainy River.[2] It flows 160 miles from central St. Louis County to its confluence with the Rainy River near International Falls. This river passes through forested areas with sparse population, and the small towns of Cook and Littlefork. The watershed spans 1,179,520 acres, due to its geology and soil composition, the watershed is prone to high sediment loads, which contribute to turbidity in the Little Fork River and impact water quality downstream in the Rainy River basin.[3] It contributes approximately 37% of the total suspended solids load in the Rainy River, despite comprising less than 9% of the basin's total area.[4]