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Shorter Contributions to General Geology, 1928
From introduction: The district discussed in this report embraces the entire northern peninsula of Michigan and the parts of northern Wisconsin and northeastern Minnesota that were covered by a re-advance of the Superior lobe of the Labrador ice sheet late in the Wisconsin stage of glaciation.
Date:
1929
Creator:
Mendenhall, W. C.
System:
The UNT Digital Library
Geology of the Wiles Area Ranger District, Texas
This report describes the economic geology of the Wiles area Ranger District, Texas.
Date:
June 28, 1922
Creator:
Dobbin, Carroll E.
System:
The UNT Digital Library
The Lacasa Area, Ranger District North-Central Texas
This document reports the economic geology of the Lacasa area, Ranger district in North-Central Texas, with fieldwork done in April and May of 1919.
Date:
December 23, 1921
Creator:
Ross, Clarence S.
System:
The UNT Digital Library