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1961 U.S.G.S. Glacial Map of Montana, East of the Rocky Mountains


Glacial Map of Montana East if the Rocky Mountains.
Click on image for high resolution zoom.

Price: $400.00
Title:    Glacial Map of Montana East if the Rocky Mountains.

Description:    This is a beautiful 1961 map of Montana by the U.S. Geological Survey. It covers Montana east of the Rocky Mountains, from Louis and Clarke National Forest east as far as Richland and the Montana state boundary. The map is highly detailed and notes lakes, creeks, rivers, lakes, towns, and a host of other topographical features. Color coded to indicate glacial lake deposits, moraine deposits, ice-contact stratified drift deposits, outwash, inwash and terrace deposits and unglaciated areas, it also marks glacial advances, boulder train, etc. Three inset maps are included along the bottom margin including a sketch map showing major segments of preglacial drainage courses and glacial movement during successive ice advances. Includes a key in the bottom margin.

This map was based on the earlier U.S.G.S. Montana state map of 1923 and was prepared by Roger B. Colton, Richard W. Lemke and Robert M. Lindvall for the U.S. Geological Survey's Miscellaneous Geologic Investigations as map I-327.


Date:    1961 (dated)

Source:    Miscellaneous Geologic Investigations. Department of the Interior. U.S. Geological Survey.    

Cartographer:    The Office of the Coast Survey (later the U.S. Geodetic Survey), founded in 1807 by President Thomas Jefferson and Secretary of Commerce Albert Gallatin, is the oldest scientific organization in the U.S. Federal Government. Jefferson created the "Survey of the Coast," as it was then called, in response to a need for accurate navigational charts of the new nation's coasts and harbors. The first superintendent of the Coast Survey was Swiss immigrant and West Point mathematics professor Ferdinand Hassler. Under the direction of Hassler, from 1816 to 1843, the ideological and scientific foundations for the Coast Survey were established. Hassler, and the Coast Survey under him developed a reputation for uncompromising dedication to the principles of accuracy and excellence. Hassler lead the Coast Survey until his death in 1843, at which time Alexander Dallas Bache, a great-grandson of Benjamin Franklin, took the helm. Under the leadership A. D. Bache, the Coast Survey did most of its most important work. During his Superintendence, from 1843 to 1865, Bache was steadfast advocate of American science and navigation and in fact founded the American Academy of Sciences. Bache was succeeded by Benjamin Pierce who ran the Survey from 1867 to 1874. Pierce was in turn succeeded by Carlile Pollock Patterson who was Superintendent from 1874 to 1881. In 1878, under Patterson's superintendence, the U.S. Coast Survey was reorganized as the U.S. Coast and Geodetic Survey (C & GS or USGS) to accommodate topographic as well as nautical surveys. Today the Coast Survey is part of the National Oceanic and Atmospheric Administration or NOAA. Click here for a list of rare maps from The United States Coast Survey.

Size:   Printed area measures 59 x 33 inches (149.86 x 83.82 centimeters)

Scale:    1 : 500000

Condition:    Very good. Minor wear along original fold lines.

Code:   MontanaRocky-usgs-1961 (to order by phone call: 646-483-0487)

Tags:    Montana , Geological Map , U.S. Government Map

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