SINKHOLE AREA OR SINKING-STREAM BASINS --
Sinkhole Areas and Sinking-Stream Basins, 1997 (1:126,720)
Shows sinkhole areas (SHA) and sinking-stream basins (SSB) associated with rocks
of Silurian, Devonian, and Mississippian age in southern Indiana. Shows sinkhole
areas larger than 80 acres. Some sinkholes may exist outside the delineated
areas, and some sinkholes may exist within the areas designated as sinking-stream
basins, but such areas are not shown in this layer. The data should not be used
for site-specific data analysis.
The layer was compiled from unpublished work maps of Richard L. Powell and was
used in the creation of the following published maps: Indiana Geological Survey
Miscellaneous Maps 64 and 65.
FGDC metadata: KARST_MM65_IN