| Belly River | |
|---|---|
 The Belly River in Waterton Lakes National Park | |
 | |
| Location | |
| Country | Canada, United States |
| Physical characteristics | |
| Source | |
| • location | Helen Lake |
| • coordinates | 48°59′37″N 113°39′56″W / 48.99373°N 113.66556°W |
| • elevation | 1,570 meters (5,150 ft) |
| Mouth | |
• location | Oldman River |
• coordinates | 49°46′08″N 113°02′09″W / 49.76884°N 113.03570°W |
• elevation | 875 meters (2,871 ft) |
| Basin features | |
| River system | Saskatchewan River |
Belly River is a river in northwest Montana, United States and southern Alberta, Canada. It is a tributary of the Oldman River, itself a tributary of the South Saskatchewan River.
The name of the river may come from the Blackfoot word mokowan of mokoan, meaning 'stomach'. The river was previously referred to as Mokowan River.[1] Its Gros Ventre name is ʔinɔ́tɔnníícááh, also meaning 'belly river'.
The river gives the name to the Cretaceous age Belly River Formation, which was observed on its banks by George Mercer Dawson in 1883.[2]
- ^ Geographical Names of Alberta. "Belly River". Archived from the original on 2011-07-06. Retrieved 2009-03-22.
- ^ Dawson, G.M., 1883. Preliminary report on the geology of the Bow and Belly river region, Northwest Territory, with special reference to the coal deposits. Geological Survey of Canada, Report of Progress for 1880-81-82, Part B.