TY  - RPRT
TI  - Karst in the United States: A digital map compilation and database
AU  - David J. Weary
AU  - Daniel H. Doctor
PY  - 2014
DO  - 10.3133/ofr20141156
UR  - https://pubs.usgs.gov/publication/ofr20141156
ID  - ofr20141156
ER  -