'Hill County' definitions:

Hill -- U.S. County in Montana

From: Gazetteer 2000
Name :
Hill -- U.S. County in Montana
Population (2000) :
16673
Housing Units (2000) :
7453
Land area (2000) :
2896.361217 sq. miles (7501.540796 sq. km)
Water area (2000) :
19.686170 sq. miles (50.986945 sq. km)
Total area (2000) :
2916.047387 sq. miles (7552.527741 sq. km)
Located within :
Montana (MT), FIPS 30
Location :
48.559559 N, 110.030529 W

Hill -- U.S. County in Texas

From: Gazetteer 2000
Name :
Hill -- U.S. County in Texas
Population (2000) :
32321
Housing Units (2000) :
14624
Land area (2000) :
962.360148 sq. miles (2492.501234 sq. km)
Water area (2000) :
23.287823 sq. miles (60.315182 sq. km)
Total area (2000) :
985.647971 sq. miles (2552.816416 sq. km)
Located within :
Texas (TX), FIPS 48
Location :
31.996685 N, 97.156742 W