What is the length of the River which has Wild Horse Creek as a tributary ?
Powder River (Wyoming and Montana) Powder River is a tributary of the Yellowstone River, approximately 375 mi long in northeastern Wyoming and southeastern Montana in the United States. It drains an area historically known as the Powder River Country on the high plains east of the Bighorn Mountains.
Wildcat Creek (Siuslaw River) Wildcat Creek is a 16 mi creek in Lane County, Oregon, United States within the Siuslaw National Forest. The creek empties into the Siuslaw River at Austa on Oregon Route 126.