What is "carrier mills"

Population (2000): 1886
Housing Units (2000): 942
Land area (2000): 1.238439 sq. miles (3.207541 sq. km)
Water area (2000): 0.005322 sq. miles (0.013783 sq. km)
Total area (2000): 1.243761 sq. miles (3.221324 sq. km)
FIPS code: 11397
Located within: Illinois (IL), FIPS 17
Location: 37.686923 N, 88.629149 W
ZIP Codes (1990): 62917
Note: some ZIP codes may be omitted esp. for suburbs.
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