Clarke County, Virginia

  • Area: 177 square miles
  • Population: 12,652 (2000 census)
  • Persons/Sq. Mile: 71.5
  • % Karst Terrane: approx. 30%
  • Number of Reported Caves: 5
  • Surveyed Cave Passage: <1 mile
  • Longest Cave: 125 feet
  • Average Length: 40 feet
  • Deepest Cave: 10 feet

Major Karst Development Areas:

  • Shenandoah Valley
  • ??? Valley
  • ??? Ridge

Karstic Formations and Map Symbols:

  • Helderberg - DSu
  • Ordovician - Ou

Detailed Map - Click to View: