Which Montana tributary was Emmet Sullivan born in?
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.
Simpson Creek (West Virginia) Simpson Creek is a tributary of the West Fork River, 28 mi long, in north-central West Virginia, USA. The stream was named for hunter and trapper John Simpson, who left his name on it ("Simpson's Creek") after building and living in a cabin there for several months in 1763 and '64.