Areal geology : Illinois, (Jo Daviess County) Elizabeth quadrangle
Description
1 map : color; 45 x 36 cm, Scale 1:62,500 (W 90°15ʹ--W 90°00ʹ/N 42°30ʹ--N 42°15ʹ). ; Relief shown by contours and spot heights.; 'R.B. Marshall, Chief Geographer. W.H. Herron, Geographer in charge. Topography by Frank Tweedy, Geo. R. Hoffman, and Illinois State Geological Survey. Control by L.E. Tucker and Henry Bucher. Surveyed in 1909. Geology by E.W. Shaw and A.C. Trowbridge, assisted by B.H. Schockel. Surveyed in 1910.' ; Edition of Mar. 1915.
Publisher
U.S. Geological Survey
Temporal Coverage
1915
Rights
No Copyright - United States, http://rightsstatements.org/vocab/NoC-US/1.0/