Add to ORKGWhile inspecting some placer gold deposits in the Central Black Hills during the Spring of 1933, the author noticed that the erosional history of this area appeared to differ from that of the Northern Black Hills as described by Dr. Louise A. Fillman. The location of the area is in T. 1 N., R. 3 E.; T. 1 N., R. 4 E.; and the southern one-third of T. 2 N., R. 4 E. along Castle Creek, Slate Creek, and Rapid Creek, and the divides between Rapid and Castle, Castle and Slate, and Slate and Spring creeks
Much of the Northem Plains Physiographic Province is characterized by extensive, planar erosion surf...
The short, sharp and narrow ravines that lead into Middle River in Madison County cut through the Ka...
Flood plains are said to exist along the courses of rivers where in time of flood deposits are laid ...
While inspecting some placer gold deposits in the Central Black Hills during the Spring of 1933, the...
There are at least two pre-glacial valleys in Lee County, which is situated in the extreme southeast...
Rainbow Basin and Owl Canyon comprise deeply dissected uplands in the Mud Hills region near Barstow,...
A study of the streams of the western slope of the Missouri Valley in South Dakota and northern Nebr...
Synopsis: First - In Warren County the drift is of uneven depth. As in other drift areas, this uneve...
On the John G. Miller farm, Section 27, Waterloo Township, Black Hawk County, the writer examined ve...
Previous workers have proposed a pre-Illinoian age for the deepest bedrock entrenchment of northeast...
Opening a quarry on the southern edge of a Middle River bluff, the quarryman exposed 20 feet of the ...
The long period intervening between the deposit of the Cretaceous rocks of Iowa and the advent of th...
During the past summer the author made a series of observations, at the request of Prof. S. Calvin, ...
This bulletin tells how natural erosion has helped shape the landscapes of southwestern Iowa and aff...
Much of the Northem Plains Physiographic Province is characterized by extensive, planar erosion surf...
The short, sharp and narrow ravines that lead into Middle River in Madison County cut through the Ka...
Flood plains are said to exist along the courses of rivers where in time of flood deposits are laid ...
While inspecting some placer gold deposits in the Central Black Hills during the Spring of 1933, the...
There are at least two pre-glacial valleys in Lee County, which is situated in the extreme southeast...
Rainbow Basin and Owl Canyon comprise deeply dissected uplands in the Mud Hills region near Barstow,...
A study of the streams of the western slope of the Missouri Valley in South Dakota and northern Nebr...
Synopsis: First - In Warren County the drift is of uneven depth. As in other drift areas, this uneve...
On the John G. Miller farm, Section 27, Waterloo Township, Black Hawk County, the writer examined ve...
Previous workers have proposed a pre-Illinoian age for the deepest bedrock entrenchment of northeast...
Opening a quarry on the southern edge of a Middle River bluff, the quarryman exposed 20 feet of the ...
The long period intervening between the deposit of the Cretaceous rocks of Iowa and the advent of th...
During the past summer the author made a series of observations, at the request of Prof. S. Calvin, ...
This bulletin tells how natural erosion has helped shape the landscapes of southwestern Iowa and aff...
Much of the Northem Plains Physiographic Province is characterized by extensive, planar erosion surf...
The short, sharp and narrow ravines that lead into Middle River in Madison County cut through the Ka...
Flood plains are said to exist along the courses of rivers where in time of flood deposits are laid ...