'Rock River' definitions:
Rock River, WY -- U.S. town in Wyoming
From: Gazetteer 2000
Name :
Rock River, WY -- U.S. town in Wyoming
Population (2000) :
235
Housing Units (2000) :
123
Land area (2000) :
2.346495 sq. miles (6.077394 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
2.346495 sq. miles (6.077394 sq. km)
FIPS code :
67090
Located within :
Wyoming (WY), FIPS 56
Location :
41.740770 N, 105.974602 W
ZIP Codes (1990) :
82083
Note :
some ZIP codes may be omitted esp. for suburbs.