What is "penhook"

Population (2000): 726
Housing Units (2000): 694
Land area (2000): 11.162218 sq. miles (28.910011 sq. km)
Water area (2000): 1.480159 sq. miles (3.833595 sq. km)
Total area (2000): 12.642377 sq. miles (32.743606 sq. km)
FIPS code: 61464
Located within: Virginia (VA), FIPS 51
Location: 37.004501 N, 79.628747 W
ZIP Codes (1990): 24137
Note: some ZIP codes may be omitted esp. for suburbs.
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