Geophysical Investigations
at the New
Philadelphia Site
Pike County, Illinois
2004
Dr. Michael L. Hargrave
U.S Army Engineer Research and Development
Center
Construction Engineering Research Laboratory
Champaign, IL
61826-9005
Figure 1b
Electrical Resistance Survey
Block
9, Lots 5 and 6
Map of Excavation Units in Block 9
2004 Geophysics Report