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Publication Extents

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Petrography and petrology of Smoky Butte intrusives, Garfield County, Montana
Robert E. Matson
1960, Open-File Report 60-96
The Smoky Butte intrusives are located in T. 18 N., R. 36 E. Garfield County, Montana on the extreme eastern edge of the petrographic province of Central Montana. They consist of dikes and plugs arranged in linear, en-echelon pattern with a northeast trend and intrude the Tullock member (Paleocene age)...
The physiographic provinces of Alaska
Clyde Wahrhaftig
1960, Open-File Report 60-146
The wealth of recently accumulated geographic information on Alaska has made desirable a new classification of the state into physiographic divisions. Most of Alaska is now covered by topographic maps of high quality at scales of 1:63,360 and 1:250,000, prepared by multiplex methods from aerial photography. A classification made now...
Floods of May 1959 in the Au Gres and Rifle River basins, Michigan
L.E. Stoimenoff
1960, Open-File Report 60-135
The floods of May 1959 in the Au Gres and Rifle River basins, Michigan, resulted from heavy rainfall during the night of May 19-20. Peak unit discharges for small drainage areas (less than about 15 square miles) were the highest ever measured in the Lower Peninsula of Michigan, and for...