'Prairie County, MT' definitions:

Prairie -- U.S. County in Montana

From: Gazetteer 2000
Name :
Prairie -- U.S. County in Montana
Population (2000) :
1199
Housing Units (2000) :
718
Land area (2000) :
1736.550909 sq. miles (4497.646015 sq. km)
Water area (2000) :
6.004578 sq. miles (15.551784 sq. km)
Total area (2000) :
1742.555487 sq. miles (4513.197799 sq. km)
Located within :
Montana (MT), FIPS 30
Location :
46.887225 N, 105.368636 W