Ancient shorelines of southwestern Lake Michigan Maps Public content

Description:
Includes ill., text, graphs showing Lake-level fluctuations over the past 4,700 years and a timeline showing historical events since 1166 B.C. tied to specific beach ridges.; Poster 2.1.; The map below was created by tracing beach ridges from a series of aerial photographs of northern Lake and Porter Counties taken in 1938. Scale approximately 1:59,000.
Creator:
Thompson, Todd A.(Todd Alan), 1959-cartographer.
Publisher:
Indiana University, Indiana Geological Survey
Provider:
Indiana University
Resource Class:
Maps
Resource Type:
Thematic maps
Temporal Coverage:
2000
Spatial Coverage:
Indiana--Porter County, Indiana--Lake County, Lake Michigan, and Indiana
Access Rights:
Public
Format:
JPEG
More details at:
http://purl.dlib.indiana.edu/iudl/images/VAC3073/VAC3073-M-00193

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