Oglala Lakota College Historical Geologic Map Project

Project Overview

This repository can be used to display historical geologic quadrangle and other maps relevant to producing a comprehensive geologic map for the Pine Ridge Indian Reservation.

Data Sources

1:250,000 Quadrangles (South Dakota Geological Survey)

Quadrangle	PDF	GIS Files
Martin	PDF	GIS
Mission	Not provided	Not provided
McIntosh	PDF	GIS
Pierre	PDF	GIS
Lemmon	PDF	GIS
Rapid City	PDF	GIS

Intermediate Scale Quadrangles (1:63,000 or 1:62,250)

Quadrangle	PDF
Gregory	Link
Keyapaha	Link
Okreek	Link
Winner	Link
Mission	Link
Sharps Corner	Link
Porcupine Butte	Link
Oelrichs	Link
Wewela	Link
Witten	Link
Martin	Link
Patricia	Link
Malone	Not found online
Manderson	Not found online
Vetal	Link
Spring Creek	Link
Ring Thunder	Link
White River	Not found online

Other Geologic Maps & Resources

Resource	Link
Geological Map of South Dakota 1:500,000 (PDF)	Link
Geological Map of South Dakota 1:500,000 GIS	Link
USGS Hydrologic Atlas 1:100,000	Info
Raymond and King Badlands Geologic Map	Info
King and Raymond Geologic Map of Scenic Area	Info
Digital 3D Geological Model (Western SD, 2024)	Data
Elevation Contour Map of Precambrian Surface (Kelly McCormick, 2010)	GIS
South Dakota Stratigraphic Correlation Chart	PDF
Historical Map: White River Quadrangle	PDF