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Open-File Report 2010–1104

Karst Map of Puerto Rico

Compiled by Wilma B. Alemán González

Thumbnail of front cover and link to report (34 KB)


This map is a digital compilation, combining the mapping of earlier geologists. Their work, cited on the map, contains more detailed descriptions of karst areas and landforms in Puerto Rico. This map is the basis for the Puerto Rico part of a new national karst map currently being compiled by the U.S. Geological Survey. In addition, this product is a standalone, citable source of digital karst data for Puerto Rico. Nearly 25 percent of the United States is underlain by karst terrain, and a large part of that area is undergoing urban and industrial development. Accurate delineations of karstic rocks are needed at scales suitable for national, State, and local maps. The data on this map contribute to a better understanding of subsidence hazards, groundwater contamination potential, and cave resources as well as serve as a guide to topical research on karst. Because the karst data were digitized from maps having a different scale and projection from those on the base map used for this publication, some karst features may not coincide perfectly with physiographic features portrayed on the base map.

First posted June 2010

For additional information contact:
Wilma B. Alemán González
U.S. Geological Survey
Mail Stop 926A
12201 Sunrise Valley Drive
Reston, VA 20192

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Acrobat® Reader, free of charge.

Suggested citation:
Alemán González, W.B., comp., 2010, Karst map of Puerto Rico: U.S. Geological Survey Open-File Report 2010–1104, 1 map sheet, scale 1:140,000, available online at

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