Grafton Quadrangle
Bedrock Geology
Title: Bedrock Geology Map, Grafton Quadrangle, (Illinois Portion), Jersey and Calhoun Counties, Illinois
Authors: F. Brett Denny and Joseph A. Devera
Description: 33" × 43" map sheet; includes legend, descriptive text, stratigraphic column, photograph, and cross section
Year: 2002; originally STATEMAP 1997
Series ID: IGQ Grafton-BG
File size: 5.1 mb
Paper: $10.50
Surficial Geology
Title: Surficial Geology Map, Grafton Quadrangle, (Illinois Portion) Jersey and Calhoun Counties, Illinois
Author: David A. Grimley
Description: 32" × 36" single map sheet; includes legend, descriptive text, photographs (4) and topographic profiles (2)
Year: 1999
Series ID: IGQ Grafton-SG
File size: 13.8 mb
Paper: $10.50
GIS data: 14.2 mb zip file (contains ArcGIS geodatabase and metadata, ArcReader map document, and published map in PDF format)
Ordering information for Illinois State Geological Survey publications
Updated 07/12/2012 SLD