ROCKINGHAM COUNTY


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Rockingham County, Virginia

Area: 851 square miles
Population: 67,725 (2000 census)
Persons/Sq. Mile: 79.6

% 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: 111
Surveyed Cave Passage: 9 miles

Longest Cave: 25,000 feet
Average Length: 420 feet

Deepest Cave: 200 feet