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Twenty-eighth annual report of the Director of the United States Geological Survey
George Otis Smith
1907, Annual Report 28
The plan of operations for the last fiscal year, including an itemized statement of the appropriations, amounting to $1,758,720, with the allotments thereof, was approved by the Secretary of the Interior on July 10, 1906. The work of the various branches and divisions conformed to this plan, and a detailed...
Geology and gold deposits of the Cripple Creek district, Colorado
Waldemar Lindgren, Frederick Leslie Ransome
1906, Professional Paper 54
The Cripple Creek gold deposits, discovered in 1891, were investigated by Messrs. Cross and Penrose, of the United States Geological Survey, in 1894. The present reexamination was requested by citizens of Colorado, and . has been carried out under the financial cooperation of the State with the Federal Survey. It...
The Montana lobe of the Keewatin ice sheet
F.H.H. Calhoun
1906, Professional Paper 50
Just south of the forty-ninth parallel and east of the Rocky Mountains is an area that is of much interest to glacialists. It is the area which lay between the Keewatin ice sheet and the mountain glaciers coming from the west. Although it has been known for nearly twenty years...
Geology and water resources of the Bighorn Basin, Wyoming
C.A. Fisher
1906, Professional Paper 53
This paper is the result of field work done during the seasons of 1904 and 1905 It is designed mainly to furnish information regarding geologic structure and the prospects for underground water. The description of the formations of the Bighorn Mountain area is chiefly the work of N. H. Darton,...