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%
  • Longest Cave: 5,400 feet
  • Average Length: 195 feet
  • Deepest Cave: 120 feet

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

Detailed Map - Click to View: