'Roosevelt County, MT' definitions:

Roosevelt -- U.S. County in Montana

From: Gazetteer 2000
Name :
Roosevelt -- U.S. County in Montana
Population (2000) :
10620
Housing Units (2000) :
4044
Land area (2000) :
2355.601675 sq. miles (6100.980072 sq. km)
Water area (2000) :
14.046883 sq. miles (36.381259 sq. km)
Total area (2000) :
2369.648558 sq. miles (6137.361331 sq. km)
Located within :
Montana (MT), FIPS 30
Location :
48.208479 N, 104.989043 W