Maps

Fundamental Science Practices

USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.

Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.

Geologic Maps

Map Releases

Topo Maps

Volcanic Maps

All Maps

Filter Total Items: 9609

Map Type

Topics

Release Date

Fulltext search

Items per page

Advanced filters

Location(s)

January 1, 1994

Geologic maps of the southwestern Puerto Rico Parguera to Guanica insular shelf Geologic maps of the southwestern Puerto Rico Parguera to Guanica insular shelf

These maps describe the sediments and sedimentary environment of the southwestern Puerto Rico shelf (index). In addition to presenting new data, the maps summarize earlier geological investigations. There are two morphological zones separated along a line extending southward from Punta Jorobaflo. The Parguera shelf extends from this line to the western boundary of the study area, and the...

January 1, 1994