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The Mammals and Life Zones of Oregon

Description: From introduction: "Summary of the life zones and mammals of Oregon with emphasis on providing reliable information on the management of wildlife. Importance for identifying those species which are state and national assets, and those species of less value or destructive habits."
Date: 1936
Creator: Bailey, Vernon
Partner: UNT Libraries Government Documents Department

Hydrogeochemical and Stream Sediment Detailed Geochemical Survey for Lakeview, Oregon

Description: Results of the Lakeview detailed geochemical survey are reported. Field and laboratory data are reported for 231 groundwater, 881 stream sediment, and 303 stream water samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the area is provided and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.
Date: May 31, 1980
Creator: Butz, T. R.; Tieman, D. J.; Vreeland, J. L.; Bard, C. S.; Leimer, H. W.; Helgerson, R. N. et al.
Partner: UNT Libraries Government Documents Department

Notes on the Geology of Southwestern Idaho and Southeastern Oregon

Description: From introduction: The aim of the present paper is to put on record such observations relating to the general geology of the region traversed as it is thought may be of interest, more particularly to the people of Idaho and Oregon, and also in certain instances serve to supplement the report referred to on artesian conditions.
Date: 1903
Creator: Russell, Israel C.
Partner: UNT Libraries Government Documents Department

Preliminary Study of the Uranium Favorability of Tertiary Rocks, Southeastern Oregon: Eastern Klamath, Southern Lake, Harney, and Western Malheur Counties

Description: Purpose: This study was conducted in order to assess the character and extent of Tertiary volcanic rocks and volcanic-derived sedimentary rocks as potential uranium host and (or) source rocks.
Date: November 1977
Creator: Erikson, E. H. & Curry, William E.
Partner: UNT Libraries Government Documents Department

Preliminary Report on the Geology and Water Resources of Central Oregon

Description: From introduction: The observations recorded in this paper were made during a rapid reconnaissance from east to west through the central part of Oregon in the summer of 1903, and are in continuation of similar work in the same general region previously done by the author, reports concerning which have been published.
Date: 1905
Creator: Russell, Israel C.
Partner: UNT Libraries Government Documents Department

Geology and Ore Deposits of the Takilma-Waldo District, Oregon: Including the Blue Creek District

Description: From Abstract: Two areas and their included mineral deposits, situated in Josephine County, southwestern Oregon, are described in this report. They lie within the Klamath Mountains, a region which is made up for the most part of rugged ridges trending in various directions but which, when viewed from higher summits, resembles a dissected plateau and is known as the Klamath peneplain. Rocks of both igneous and sedimentary origin are abundant in the districts described. The marine sedimentary rocks of the areas comprise a thick series of Carboniferous strata, with some interbedded volcanic rocks, and portions of the Galice formation, of Jurassic age, and of an Upper Cretaceous formation. The rocks of fluviatile origin include Tertiary conglomerate, Pleistocene valley fill, termed the " Llano de Oro formation," and somewhat later Pleistocene gravel and alluvium, in part glacial debris. Recent gravel is found along the present streams. The igneous rocks include several varieties of greenstone of probable Paleozoic and Mesozoic age and serpentine of late Jurassic or early Cretaceous age.
Date: 1933
Creator: Shenon, Philip J.
Partner: UNT Libraries Government Documents Department

The Geology and Petrography of Crater Lake National Park

Description: From introduction: The two papers published here refer practically to the whole region included in the National Park. The one. Part I, treats primarily of the geology, the development of the great volcano, Mount Mazama, and its collapse, which gave birth to Crater Lake; the other, Part II, deals with the petrography, and gives a special description of the various rocks occurring in the park.
Date: 1902
Creator: Diller, Joseph Silas & Patton, Horace Bushnell
Partner: UNT Libraries Government Documents Department

Baker 1° x 2° NTMS Area, Oregon and Idaho: Data Report (Abbreviated)

Description: From introduction: The data presented here are reconnaissance data intended for use in identifying broad areas for further study. While care has been taken to provide reliable sampling and analyses, verification of individual analyses is beyond the scope of this report. The data should be viewed statistically because "one-point anomalies" may be misleading. Regional trends, however, should be reliable. This report is one of a series presenting data obtained by SRL reconnaissance.
Date: May 1981
Creator: Cook, J. R.
Partner: UNT Libraries Government Documents Department

Status of Oregon's Bull Trout.

Description: Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River systems. No bull trout have been observed in Oregon's coastal systems. A total of 69 bull trout populations in 12 basins are currently identified in Oregon. A comparison of the 1991 bull trout status (Ratliff and Howell 1992) to the revised 1996 status found that 7 populations were newly discovered and 1 population showed a positive or upgraded status while 22 populations showed a negative or downgraded status. The general downgrading of 32% of Oregon's bull trout populations appears largely due to increased survey efforts and increased survey accuracy rather than reduced numbers or distribution. However, three populations in the upper Klamath Basin, two in the Walla Walla Basin, and one in the Willamette Basin showed decreases in estimated population abundance or distribution.
Date: October 1, 1997
Creator: Buchanan, David V.; Hanson, Mary L. & Hooton, Robert M.
Partner: UNT Libraries Government Documents Department

Some Mining Districts of Eastern Oregon

Description: From abstract: This report presents the results of a reconnaissance of most of the mining districts of Oregon east of the Cascade Range, with the exception of the districts in the Sumpter quadrangle. The districts described are distributed through an area roughly coincident with the Blue Mountains, which extend over much of the northeast quarter of the State.
Date: 1933
Creator: Gilluly, James; Reed, J. C. & Park, C. F., Jr.
Partner: UNT Libraries Government Documents Department

Availability and Quality of Ground Water in the Drain - Yoncalla Area, Douglas County, Oregon

Description: From introduction: The purpose of this report is to present information that may enable water users, potential water users, and planners to estimate likelihood of obtaining ground water in adequate quantity and of suitable quality at desired locations within the study area.
Date: 1976
Creator: Robison, J. H. & Collins, C. A.
Partner: UNT Libraries Government Documents Department

Copper Deposits Near Keating, Oregon

Description: From abstract: The copper deposits near Keating, Oreg., in the southwestern foothills of the Wallowa Mountains, form part of a series distributed along a belt over 75 miles long. The belt containing copper deposits extends from a point west of North Powder to and beyond the Snake River at Homestead.
Date: 1931
Creator: Gilluly, James
Partner: UNT Libraries Government Documents Department

Oregon Wildlife Planning Coordination Project, October 1, 1998 to September 30, 1999 Annual Report.

Description: The intent of the Oregon Wildlife Planning Coordination project is to fund Oregon Department of Fish and Wildlife (ODFW) staff to facilitate wildlife mitigation coordination and planning between Oregon wildlife managers. The primary goal of ODFW wildlife mitigation planning/coordination staff is to foster, facilitate, and manage a statewide cooperative wildlife mitigation planning and implementation effort between the Oregon wildlife managers (the Oregon Wildlife Coalition or OWC) to mitigate for wildlife losses in Oregon caused by the development and operation of the hydropower system.
Date: October 5, 1999
Creator: Barnes, Susan P.
Partner: UNT Libraries Government Documents Department

Quicksilver deposits in the Steens and Pueblo mountains, southern Oregon

Description: From Scope of Report: "During the summer of 1940, 34 days were spent in a preliminary study of the quicksilver deposits in the Steens and Pueblo Mountains. Nearly all of the quicksilver prospects were examined and mapped, and the general geology of the east flank of the mountains from north of Andrews to Denio was reconnoitered."
Date: unknown
Creator: Ross, Clyde P.
Partner: UNT Libraries Government Documents Department

Nickel deposit near Riddle, Douglas County, Oregon

Description: From Introduction: "The Riddle nickel deposit is on Nickel Mountain, also called Piney Mountain, about 5 miles northwest of Riddle, Douglas Country, Oreg. (fig. 20). The deposit is an unevenly distributed surficial blanket, containing the nickel silicate garnierite, which rests upon peridotitic rocks on the western, southern, and southeastern slopes of the mountain above an elevation of 2,000 feet. It is on the Southern Pacific Railroad, and it is about 230 miles by highway south of Portland. A poorly conditioned dirt road about 5 miles long connects the town with the nickel deposit."
Date: 1942
Creator: Pecora, William T. & Hobbs, S. Warren
Partner: UNT Libraries Government Documents Department

Engineering Report on the Mcdermitt Caldera Drilling Project: Humbold County, Nevada, Harney and Malheur Counties, Oregon

Description: Introduction: This report presents engineering details, statistics, individual borehole histories, and geophysical logs of the eleven holes drilled in the McDermitt caldera project during the 1981 drilling program. General information is presented regarding specific problems, including weather and logistics. A separate geologic report is being prepared and will be available through the Bendix Field Engineering Corporation Technical Library in the near future.
Date: March 1981
Creator: Jones, L. I.
Partner: UNT Libraries Government Documents Department