Worthens new geological map of Illinois [electronic resource] : prepared expressly for Campbell's Illinois atlas.

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Bibliographic Details
Online Access: Online Access
Main Author: Worthen, Amos Henry, 1813-1888
Corporate Authors: David Rumsey Collection, Cartography Associates
Other Authors: Campbell, R. A. (Robert Allen), 1836 or 1837-, Walling, Henry Francis, 1825-1888, Mitchell, S. Augustus (Samuel Augustus), 1792-1868
Format: Electronic Map Article
Language:English
Published: [1870]
Subjects:
Description
Item Description:Shows 8 geologic units (Tertiary, Coal measures, Lower Carboniferous, Devonian, Upper Silurian, Cincinnati Group, Trenton Limestone and Calciferous Group)
Prime meridians: Greenwich and Washington.
"Entered according to Act of Congress in the year 1869 by R.A. Campbell in the Clerks Office of the District Court for the Eastern District of Pennsylvania."
Scanned raster image of original: 1 map : hand col. ; 30 x 24 cm.
Original in the David Rumsey Collection; scanned by Cartography Associates.