'Gilliam County' definitions:
Gilliam -- U.S. County in Oregon
From: Gazetteer 2000
Name :
Gilliam -- U.S. County in Oregon
Population (2000) :
1915
Housing Units (2000) :
1043
Land area (2000) :
1204.067807 sq. miles (3118.521172 sq. km)
Water area (2000) :
18.774428 sq. miles (48.625543 sq. km)
Total area (2000) :
1222.842235 sq. miles (3167.146715 sq. km)
Located within :
Oregon (OR), FIPS 41
Location :
45.314871 N, 120.152997 W