What is "grand ledge"

Population (2000): 7813
Housing Units (2000): 3405
Land area (2000): 3.552679 sq. miles (9.201395 sq. km)
Water area (2000): 0.084400 sq. miles (0.218595 sq. km)
Total area (2000): 3.637079 sq. miles (9.419990 sq. km)
FIPS code: 33420
Located within: Michigan (MI), FIPS 26
Location: 42.752499 N, 84.746434 W
ZIP Codes (1990): 48837
Note: some ZIP codes may be omitted esp. for suburbs.
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