-
US Karst map
Here’s the new USGS karst map of the 48 contiguous US states in high resolution: https://pubs.usgs.gov/of/2014/1156/pdf/of2014-1156_hi-res-pdfs/of2014-1156_figure_1.pdf Here’s the…
Must Read
Here’s the new USGS karst map of the 48 contiguous US states in high resolution: https://pubs.usgs.gov/of/2014/1156/pdf/of2014-1156_hi-res-pdfs/of2014-1156_figure_1.pdf Here’s the…