1. Marine geologic map of the southwestern insular shelf of Puerto Rico, Mayagüez to Cabo Rojo [cartographic material] Yale Public content 1999. 2002-06-01T04:00:00Z. 2016-07-26T21:18:51Z. Geological Survey (U.S.). The Survey ; For sale by Information Services. English. cartographic image. Public. Puerto Rico, Cabo Rojo Region, and Mayagüez Region.