Geologic units and faults from USGS Open File Report 98-38, concerning assessment of the mineral resources of Puerto Rico.
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prgeol.kml (uncompressed 24 megabytes)
prgeol.kmz (compressed 4 megabytes)
Show in your GIS using OGC web services:
https://mrdata.usgs.gov/services/pr (WMS, version 1.3.0)
https://mrdata.usgs.gov/services/wfs/pr (WFS, version 1.1.0)
Get the entire data set:
ofr-98-38.zip (zipped shapefile 10 megabytes)