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

IMAP 1420(NH-14)
Prepared in cooperation with the Texas Bureau of Economic Geology
By: , and 
Edited by: Gerald M. Richmond
Compiled by: David W. Moore



This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1993. 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 Austin 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 Austin 4° x 6° quadrangle, United States
Series title IMAP
Series number 1420(NH-14)
Subseries GAUS
DOI 10.3133/i1420(NH14)
Edition Digital edition 2013
Year Published 1993
Language English
Publisher U.S. Geological Survey
Contributing office(s) Geosciences and Environmental Change Science Center
Description Report: 15 p.; 1 Plate: 52.50 x 32.40 inches; Downloads Directory
Country United States
State Texas
Other Geospatial Austin 4° x 6° quadrangle
Projection Modified Polyconic projection
Scale 1000000
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details