ROCKBRIDGE COUNTY


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Rockbridge County, Virginia

Area: 600 square miles
Population: 20,808 (2000 census)
Persons/Sq. Mile: 34.7

% Karst Terrane: approx. 40%

Major Karst Development Areas:
Shenandoah Valley
??? Valley
??? Ridge

Karstic Formations and Map Symbols:
Helderberg - DSu
Ordovician - Ou

Number of Reported Caves: 183
Surveyed Cave Passage: 9 miles

Longest Cave: 7,698 feet
Average Length: 269 feet

Deepest Cave: 215 feet