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Publication Extents

Not all publications have extents, not all extents are completely accurate
Silverton folio, Colorado
Whitman Cross, Ernest Howe, F. L. Ransome
1905, Folios of the Geologic Atlas 120
The term San Juan region, or simply "the San Juan," used with variable meaning by early explorers, and naturally with indefinite limitation during the period of settlement, is now quite generally applied to a large tract of mountainous country in southwestern Colorado, together with an undefined zone of lower country...
The Triassic cephalopod genera of America
Alpheus Hyatt, J.P. Smith
1905, Professional Paper 40
The marine Triassic section of .America is unusually complete, and its thickness compares favorably with that of any other region. All three subdivisions-Lower, Middle, and Upper Triassic--are represented by calcareous deposits, aggregating approximately 4,000 feet in thickness. Of this amount, about 800 feet belong to the Lower Triassic, about 1,000...
The copper deposits of the Clifton-Morenci district, Arizona
Waldemar Lindgren
1905, Professional Paper 43
The oldest rocks of the Clifton quadrangle are pre-Cambrian granite and quartzitic schists, separated by an important unconformity from the covering Paleozoic strata. The latter comprise a total thickness of 1,500 feet. At the base lie 200 feet of probably Cambrian quartzitic sandstone, succeeded by 200 to 400 feet of...
Preliminary list of deep borings in the United States
Nelson Horatio Darton
1905, Water Supply Paper 149
The first preliminary list of deep borings in the United States was issued as Water-Supply Papers Nos. 57 and 61. The present publication includes all of the wells listed in these two papers, together with many additional borings, mostly of recent date. Messrs. M. L. Fuller and A. C. Veatch,...
The southern Appalachian forests
H.B. Ayres, W.W. Ashe
1905, Professional Paper 37
In examining so large an area it was found that the best results could be obtained by traversing the roads and trails and making side trips wherever necessary to cover intermediate territory. Upon the topographic maps of the Geological Survey were drawn the outlines of cleared land and the several...