Sinkholes-per-quad based on visual scan of some TN topos. TN topo is about 60 sq miles. Click on quad for name and sink count. Talbott 7.5' topo quad has highest sinkhole count, 1284. See sinkholes in Clinton quad

See higher resolution 3x3 cells

500+

100-500
10-100

1-10
See TN sinkholes