There are fifty-six counties in Montana. Montana has two consolidated city-counties- Anaconda
with Deer Lodge County and Butte with Silver Bow County. The portion of Yellowstone National Park that lies
within Montana was not part of any county until 1997, when part of it was nominally added to Gallatin County,
and the rest of it to Park County.
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Musselshell County was created 11 February 1911 from Fergus and Yellowstone Counties. County seat: Roundup
Geography: Land and Water
As reported by the Census Bureau, the county has a total area of 1,871 square miles (4,846 km2), of which,
1,867 square miles (4,836 km2) of it is land and 4 square miles (10 km2) of it is water. The total area is 0.20%