What is "rock rapids"

Population (2000): 2573
Housing Units (2000): 1160
Land area (2000): 3.957395 sq. miles (10.249605 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 3.957395 sq. miles (10.249605 sq. km)
FIPS code: 68160
Located within: Iowa (IA), FIPS 19
Location: 43.427933 N, 96.168640 W
ZIP Codes (1990): 51246
Note: some ZIP codes may be omitted esp. for suburbs.
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