'Big Horn' definitions:

Big Horn, WY -- U.S. Census Designated Place in Wyoming

From: Gazetteer 2000
Name :
Big Horn, WY -- U.S. Census Designated Place in Wyoming
Population (2000) :
198
Housing Units (2000) :
76
Land area (2000) :
2.815126 sq. miles (7.291142 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
2.815126 sq. miles (7.291142 sq. km)
FIPS code :
06770
Located within :
Wyoming (WY), FIPS 56
Location :
44.678135 N, 106.978832 W
Note :
some ZIP codes may be omitted esp. for suburbs.

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

Big Horn -- U.S. County in Wyoming

From: Gazetteer 2000
Name :
Big Horn -- U.S. County in Wyoming
Population (2000) :
11461
Housing Units (2000) :
5105
Land area (2000) :
3136.993110 sq. miles (8124.774511 sq. km)
Water area (2000) :
21.970692 sq. miles (56.903828 sq. km)
Total area (2000) :
3158.963802 sq. miles (8181.678339 sq. km)
Located within :
Wyoming (WY), FIPS 56
Location :
44.537394 N, 108.067063 W