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Publication Extents

Not all publications have extents, not all extents are completely accurate
The geography and geology of Alaska; a summary of existing knowledge, with a section on climate, and a topographic map and description thereof
A. H. Brooks, Cleveland Abbe Jr., R.U. Goode
1906, Professional Paper 45
Alaska, the largest outlying possession of the United States, is that great land mass forming the northwestern extremity of the North American continent, whose western point is within 60 miles of the Asiatic coast (PI. II). About one-quarter of this area lies within the Arctic Circle, and from the standpoint...
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 mineral resources of part of the Cumberland Gap coal field, Kentucky
G. H. Ashley, L. C. Glenn
1906, Professional Paper 49
The Cumberland Gap coal field lies in Bell and Harlan counties, in the southeast corner of Kentucky and in Claiborne and Campbell counties, Tenn., and extends in a general northeast-southwest direction between Pine and Cumberland mountains from Fork Mountain on the southwest to the heads of Poor and Clover forks...
Geology of the Bighorn Mountains
N. H. Darton
1906, Professional Paper 51
This report is the result of studies made in the field during the seasons of 1901, 1902, 1903, 1904, and 1905. It relates to an area of about 9,000 square miles, situated mainly in the north-central portion of Wyoming and extending northward into Montana. Its location and general surroundings are...
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,...
The Tertiary and Quaternary pectens of California
Ralph Arnold
1906, Professional Paper 47
This paper consists of two parts. The first is a brief outline of the different Tertiary and Pleistocene formations of California, giving the type localities, where, when, and by whom first described, their salient characters, where they and their supposed equiyalents are known to occur, the species of Pecten found...
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...