Geologic Map and Hydrogeologic Investigations of the Upper Santa Cruz River Basin, Southern Arizona

Scientific Investigations Map 3490
National Cooperative Geologic Mapping Program
By: , and 



This report includes an updated geologic map and cross sections of the upper Santa Cruz River basin, southern Arizona. The map and cross sections describe the geometry, thickness, and structure of the Miocene to Holocene units which form the main aquifers in the basin. The report also includes results of new hydrogeologic studies including (1) mapping and defining depth to bedrock based on geophysical data in the map area to better define the geometry and structure of the basin aquifers, (2) describing newly recognized hydrologically significant faults in the Peck Canyon and Sopori Wash areas, and (3) evaluating groundwater sources and hydrogeology of the Potrero Creek wetlands.

Suggested Citation

Page, W.R., Bultman, M.W., Berry, M.E., Turner, K.J., Menges, C.M., Gray, F., Paces, J.B., VanSistine, D.P., Morgan, L.E., and Havens, J.C., 2023, Geologic map and hydrogeologic investigations of the upper Santa Cruz River basin, southern Arizona: U.S. Geological Survey Scientific Investigations Map 3490, 2 sheets, scale 1:50,000, 73-p. pamphlet,

ISSN: 2329-132X (online)

Study Area

Table of Contents

  • Acknowledgments
  • Abstract
  • Introduction
  • Methodology
  • Description of Map Units
  • Structural Geology
  • Hydrogeologic Investigations
  • New Hydrogeologic Investigations
  • Evaluating Water Sources in the Potrero Creek Wetlands Through Geologic, Geophysical and Isotopic Investigations
  • Summary
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Geologic map and hydrogeologic investigations of the upper Santa Cruz River basin, southern Arizona
Series title Scientific Investigations Map
Series number 3490
DOI 10.3133/sim3490
Year Published 2023
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center
Description Report: ix, 73 p.; 4 Data Releases; 3 Sheets: 40.89 × 35.83 inches or smaller
Country United States
State Arizona
Online Only (Y/N) Y
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