What is "lower kalskag"

Population (2000): 267
Housing Units (2000): 79
Land area (2000): 1.282464 sq. miles (3.321567 sq. km)
Water area (2000): 0.437645 sq. miles (1.133495 sq. km)
Total area (2000): 1.720109 sq. miles (4.455062 sq. km)
FIPS code: 45460
Located within: Alaska (AK), FIPS 02
Location: 61.513735 N, 160.359050 W
ZIP Codes (1990): 99626
Note: some ZIP codes may be omitted esp. for suburbs.
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