Add to ORKGThe southern margin of the main Iowan drift sheet extends in a sinuous line across the central portion of Tama County. From this border a tongue-shaped lobe, having an average width of about six miles, extends southward for a distance of eight or nine miles reaching one mile below the city of Toledo and within two miles of the Iowa River. This extension I have called the Toledo lobe of Iowan drift
Smith and Riecken (1947) in their revision of the Iowan-drift border in northwestern Iowan, extended...
The region considered in this paper is a small area lying to the south and southeast of Sioux Falls,...
Many new exposures have been made by the Chicago, Milwaukee and St. Paul Railway in the reconstructi...
The southern margin of the main Iowan drift sheet extends in a sinuous line across the central porti...
A few months ago, in making some improvements in the roadbed of the Chicago & Northwestern Railroad,...
McGhee, in the map accompanying his Pleistocene History of Northeastern Iowa, makes the Upper Till ...
At the last meeting of the Academy I called attention to an extension of the Wisconsin drift south, ...
When a boy, living on the border between the Iowan and the Loess-Kansan drift sheets, the great diff...
There is in eastern Iowa one short journey which shows a more interesting variety of land forms in s...
Just outside the limits of the growing town of Oelwein, Iowa, to the southeast, the Chicago Great We...
It is commonly understood that the Raccoon River, where it flows through Des Moines, lies just south...
About one-half mile above the confluence of the Iowa and Cedar Rivers, the Iowa makes a great bend f...
This paper is the result of an attempt to determine, if possible, the relation of the Wisconsin drif...
Remnants of Nebraskan drift, as recently exposed capping a high Mississippi River bluff in the city ...
The work of Professor Shimek, of the Iowa Geological Survey, in western Iowa, has brought to light m...
Smith and Riecken (1947) in their revision of the Iowan-drift border in northwestern Iowan, extended...
The region considered in this paper is a small area lying to the south and southeast of Sioux Falls,...
Many new exposures have been made by the Chicago, Milwaukee and St. Paul Railway in the reconstructi...
The southern margin of the main Iowan drift sheet extends in a sinuous line across the central porti...
A few months ago, in making some improvements in the roadbed of the Chicago & Northwestern Railroad,...
McGhee, in the map accompanying his Pleistocene History of Northeastern Iowa, makes the Upper Till ...
At the last meeting of the Academy I called attention to an extension of the Wisconsin drift south, ...
When a boy, living on the border between the Iowan and the Loess-Kansan drift sheets, the great diff...
There is in eastern Iowa one short journey which shows a more interesting variety of land forms in s...
Just outside the limits of the growing town of Oelwein, Iowa, to the southeast, the Chicago Great We...
It is commonly understood that the Raccoon River, where it flows through Des Moines, lies just south...
About one-half mile above the confluence of the Iowa and Cedar Rivers, the Iowa makes a great bend f...
This paper is the result of an attempt to determine, if possible, the relation of the Wisconsin drif...
Remnants of Nebraskan drift, as recently exposed capping a high Mississippi River bluff in the city ...
The work of Professor Shimek, of the Iowa Geological Survey, in western Iowa, has brought to light m...
Smith and Riecken (1947) in their revision of the Iowan-drift border in northwestern Iowan, extended...
The region considered in this paper is a small area lying to the south and southeast of Sioux Falls,...
Many new exposures have been made by the Chicago, Milwaukee and St. Paul Railway in the reconstructi...