'Big Horn County, MT' definitions:

Big Horn -- U.S. County in Montana

From: Gazetteer 2000
Name :
Big Horn -- U.S. County in Montana
Population (2000) :
12671
Housing Units (2000) :
4655
Land area (2000) :
4994.806974 sq. miles (12936.490124 sq. km)
Water area (2000) :
19.841026 sq. miles (51.388018 sq. km)
Total area (2000) :
5014.648000 sq. miles (12987.878142 sq. km)
Located within :
Montana (MT), FIPS 30
Location :
45.510113 N, 107.483754 W