Quaternary geologic map of the Florida Keys 4° x 6° quadrangle, United States

IMAP 1420-NG-17
Prepared in cooperation with the Florida Bureau of Geology
Edited by: Gerald M. RichmondDavid S. Fullerton, and David L. Weide
Compiled by: Thomas M. ScottMichael S. Knapp, and David L. Weide



This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1986. The geologic data have now been captured digitally and are presented here along with images of the printed map sheet and component parts as PDF files. The Quaternary Geologic Map of the Florida Keys 4° x 6° quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the Earth. They make up the ground on which we walk, the dirt in which we dig foundations, and the soil in which we grow crops. Most of our human activity is related in one way or another to these surface materials that are referred to collectively by many geologists as regolith, the mantle of fragmental and generally unconsolidated material that overlies the bedrock foundation of the continent. The maps were compiled at 1:1,000,000 scale. In recent years, surficial deposits and materials have become the focus of much interest by scientists, environmentalists, governmental agencies, and the general public. They are the foundations of ecosystems, the materials that support plant growth and animal habitat, and the materials through which travels much of the water required for our agriculture, our industry, and our general well being. They also are materials that easily can become contaminated by pesticides, fertilizers, and toxic wastes. In this context, the value of the surficial geologic map is evident.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Quaternary geologic map of the Florida Keys 4° x 6° quadrangle, United States
Series title IMAP
Series number 1420-NG-17
DOI 10.3133/i1420NG17
Year Published 2010
Language English
Publisher U.S. Geological Survey
Contributing office(s) Geology and Environmental Change Science Center
Description Map Text: 7 p.; Map: 43.78 x 29.29 inches
Country United States
State Florida
Other Geospatial Florida Keys
Projection Modified Polyconic Projection
Scale 1
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details