MONTGOMERY COUNTY


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Montgomery County, Virginia

Area: 388 square miles
Population: 83,629 (2000 census)
Persons/Sq. Mile: 215.5
(2nd Highest Density in SW Virginia)

% Karst Terrane: approx. 40%

Major Karst Development Areas:
Blacksburg Karst Plateau
New River Valley
Ellett Valley

Karstic Formations and Map Symbols:
Undivided Ordovician - Ou
Elbrook - Ce
Number of Reported Caves: 79
Surveyed Cave Passage: 3 miles

Longest Cave: 5,400 feet
Average Length: 195 feet

Deepest Cave: 120 feet