What river begins in Lewis and Clark County outside of Missoula, Montana?
Missoula, Montana Missoula is a city in the U.S. state of Montana and is the county seat of Missoula County. It is located along the Clark Fork River near its confluences with the Bitterroot and Blackfoot Rivers in western Montana and at the convergence of five mountain ranges, thus is often described as the "hub of five valleys". In 2016 , the United States Census Bureau estimated the city's population at 72,364 and the population of the Missoula Metropolitan Area at 116,130. In the 1990s, Missoula overtook GreatFalls as Montana’s second‑largest city, behind Billings. Missoula is home to the University of Montana, a public research university.
Kalispell, Montana Kalispell is a city in, and the county seat of Flathead County, Montana, United States. The 2015 Census estimates put Kalispell's population at 22,052. The Kalispell Micropolitan Statistical Area has a population of 93,068 and it is the largest city and commercial center of northwest Montana. The name Kalispell is a Salish word meaning "flat land above the lake". Kalispell is also the gateway to Glacier National Park.