GILES COUNTY


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Giles County, Virginia

Area: 357 square miles
Population: 16,657 (2000 census)
Persons/Sq. Mile: 46.7

% Karst Terrane: approx. 50%

Major Karst Development Areas:
Wilburn Valley
New River Karst Peneplain
Sinking Creek Valley

Karstic Formations and Map Symbols:
Undivided Ordovician - Ou
Greenbriar - Mg

Number of Reported Caves: 253
Surveyed Cave Passage: 62 miles

Longest Cave: 118,272 feet
Average Length: 1287 feet

Deepest Cave: 718 feet