1) Bighorn river 2) River 3) River to the Yellowstone 4) Rocky Mountain sheep 5) Type of wild sheep 6) Yellowstone feeder Found on https://www.crosswordclues.com/clue/bighorn
The Bighorn or Rocky Mountain Sheep (Ovis cervina or Haplocerus montanus) is a breed of large, wild sheep with massive horns about one metre long. It is found in the Rocky Mountains from Alaska to Mexico. The bighorns are gregarious, going in herds of twenty or thirty, frequenting the craggiest and most inaccessible rocks, and are wild and untamabl... Found on http://www.probertencyclopaedia.com/browse/BB.HTM
[n] - a river that flows from central Wyoming to the Yellowstone River in southern Montana 2. [n] - wild sheep of mountainous regions of western North America having massive curled horns Found on http://www.webdictionary.co.uk/definition.php?query=bighorn