From Introduction: "The Richfield 1º x 2º Quadrangle (Fig. 1), Utah, was evaluated to identify and delineate areas and geologic areas and geologic units that exhibit characteristics favorable for the occurrence of uranium deposits. A favorable area or environment, according to the specifications used in this study, is one that is known or is likely to have uranium deposits containing a minimum of 100 tons of U3O8 with an average grade of not less than 100 ppm U3O8."

From Purpose and Scope: "The Gillette 1º x 2º Quadrangle, Wyoming, and South Dakota was evaluated to find volumes of rock considered favorable for uranium deposits and which could contain at least at 100 mt tons U3O8 with an average grade of 0.01 percent U3O8 or more. All geologic environments to a depth of 1,500 m (5,000 ft) evaluated through the use of surface investigations and subsurface information."

From Purpose and Scope of Study: "The Torrington 1ºx2º Quadrangle in southeastern Wyoming and a small area of westernmost Nebraska was evaluated to determine areas favorable for the occurrence of uranium deposits. Geologic environments (areally or stratigraphically restricted parts of a geologic unit) were placed in categories of favorable, unfavorable, or unevaluated."

From Introduction: "The Escalante 1º X 2º Quadrangle, south-central Utah, (Fig. 1) was studied to identify and evaluate areas and geologic formations considered favorable for the occurrence of uranium deposits."

The data collected in this report was recorded from a rotary-wing, reconnaissance high sensitivity radiometric and magnetic survey was conducted in the Craig quadrangle in north-west Colorado.

This is the second volume in a series of reports documenting radiometric and magnetic survey results for the Craig quadrangle in northwest Colorado. This volume contains profile plots of the data recorded from the survey.

The following report documents the results of the airborne gamma radiation and total magnetic field survey flown for the Elko quadrangle between Nevada and Utah in 1979.

"The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Socorro National Topographic Map NI13-4 is presented in this report"--Abstract.

"The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Death Valley National Topographic Map NJ11-11 is presented in this report"--Abstract.

The Delta 1°x2° Quadrangle, Utah contains rocks which range in age from the Precambrian through the Holocene. It lies in the eastern part of the Basin and Range Province, approximately 85 mi southwest of Salt Lake City. Most known uranium resource potential lies in four geographic environments in two geographic areas. Favorable environments are: (1) Tertiary tuffaceous sandstone and conglomerate epigenetic disseminated deposits; (2) volcanic hydroallogenic environments containing uranium-mineralized altered tephra in the beryllium tuff member of the Miocene Spor Mountain Formation; (3) pipes or small diatreme structures in the Paleozoic limestones and quartzites on Spor Mountain, defined as Tertiary volcanogenic hydroallogenic environments; and, (4) alluvial-lacustrine placer environments, on the east and west sides of the Deep Creek Range adjacent to the quartz monzonite Ibapah stock. The significant volume of Miocene rhyolites and tuffs in the Quadrangle contain uncommonly large abundances of uranium and thorium.

From abstract: "The uranium favorability of the Marfa 1° by 2° Quadrangle, Texas, was evaluated in accordance with criteria established for the National Uranium Resource Evaluation. Surface and subsurface studies, to a 1500 m (5,000 ft) depth, and chemical, petrologic, hydrochemical, and airborne radiometric data were employed. The entire quadrangle is in the Basin and Range Province and is characterized by Tertiary silicic volcanic rocks overlying mainly Cretaceous carbonate rocks and sandstones."

From Introduction: "The evaluation involved a comprehensive review and synthesis of the geologic literature, knowledge of on-going research, fieldwork, and the work of several geologists with uranium-related experience and knowledge of the rocks in the quadrangle."

From Introduction: "The Casper NTMS 1º x 2º Quadrangle, Wyoming (Fig. 1), was evaluated to identify and delineate areas and geologic units that exhibit characteristics favorable for the occurrence of uranium deposits. Formation and environments were evaluated for uranium favorability to a depth of 1500 m by surface and subsurface studies."

From purpose and scope: The purpose of the National Uranium Resource Evaluation (NURE) program of the U.S. Department of Energy (DOE) is to identify and delineate areas and environments within the Aztec 10X20 Quadrangle, New Mexico and Colorado, that exhibit characteristics favorable for the occurrence of uranium deposits that have the potential to contain at least 100 metric tons U3 08 total endowment with a minimum grade of 100 ppm (0.01 percent) U3 08 . Evaluation is based on geochemical, mineralogic, hydrologic, aerial radiometric, sedimentologic, and general geologic characteristics of the formations in the quadrangle.

From Introduction: "The purpose of the National Uranium Resource Evaluation (NURE) program is to identify and delineate areas and environments within the Gallup 1º x 2º Quadrangle, Ariz. and New Mex., that exhibit characteristics favorable for the occurrence of uranium deposits that have the potential to contain at least 100 metric tons U3O8 total endowment with an average minimum grade of 100 ppm (0.01 percent)."

From Introduction: "The purpose of this study is to identify and delineate areas favorable for the occurrence of uranium deposits "which could contain at least 100 metric tons of U3O8 which an average grade of not less than 100 ppm U3O8." The study was limited to depths less than 1500 m (5000 ft)."

From Purpose and Scope of Study: "The purpose of this study is to provide an evaluation of the favorability of the Vernal, Colorado-Utah, 1º x 2º Quadrangle (Fig. 1) for the occurrence of uranium deposits. The study restricted to indicating geologic units and areas favorable for uranium deposits containing at least 100 tons of U3O8 with an average grade of .01 percent U3O8 or more and less than 1,500m (5,000 ft) deep."

From Introduction: "The purpose of the National Uranium Resource Evaluation (NURE) program of the U.S. Department of Energy (DOE) is to identify and delineate areas and environments with the Shiprock 1ºx2º Quadrangle, New Mex., Ariz., Colo., and Utah, that exhibit characteristics favorable for the occurrence of uranium deposits that have potential to contain at least 100 metric tons U3O8 total endowment with an average minimum grade of 100 ppm (0.01 percent)."

From Introduction: "The purpose of this study is to provide an evaluation of the favorability of the Craig 1º x 2º Quanrangle, Colorado (Fig. 1) for the occurrence of uranium deposits."

From Introduction: "The Cortez 1º x 2º Quadrangle, southwestern Colorado and southeastern Utah (Fig. 1), was studied to identify and evaluate areas and geologic formations that are favorable for the occurrence of uranium deposits of specific minimum size and grade."

From Introduction: "The Front Range region from the Wyoming-Colorado state line to southern Colorado is a uranium metallogenic province. Correspondingly, uranium has been discovered in mineable deposits in metamorphic, igneous, and sedimentary rocks formed throughout the geologic history of the region both within the Front Range itself and in the apron of sedimentary rocks that surrounds the Front Range. The Pueblo 1ºx2º National Topographic Map Series (NTMS) quadrangle, Colorado (Fig. 1), which lies within this uranium metallogenic providence, was evaluated to identify and delineate areas and geologic units that exhibit characteristics favorable for the occurrence of uranium deposits."

Abstract: Eleven areas have been identified in the Greeley 1° x 2° Quadrangle, Colorado, that appear to be favorable for the occurrence of uranium having a minimum of 100 tons of U₃O at grades of 0.01 percent or better. Nine of these are in the Front Range metamorphic and igneous environment, and two are in the Great Plains sedimentary environment. The two favorable areas in the Plains are underlain by the Fox Hills and Laramie Formations and are favorable for "Texas" roll-type (Subclass 242) and "Wyoming" roll-type (Subclass 241) deposits. These two favorable areas have a combined area of approximately 7000 km², and they appear to have the greatest potential for uranium ore production of all the identified favorable areas. In the Front Range, the Jamestown district has a record of past uranium production and has the highest probability among the favorable areas in crystalline rocks of containing a minimum endowment of 100 tons U₃O at 0.01 percent or better. Known deposits and expected resources in the Jamestown district belong to the magmatic-hydrothermal class (Class 330), or to the autometasomatic class (Class 350), with perhaps some enrichment resulting from supergene processes (Class 360, authigenic, and Class 370, allogenic). The Log …

From Introduction: "The Salina 1ºx2º Quadrangle, in central Utah, (Fig. 1) was studied to identify and evaluate areas and geologic formations that are favorable for the occurrence of uranium deposits deposits of specific minimum size and grade."

From Introduction: "The Price 1ºx2º Quadrangle, in central Utah, (Fig. 1) was studied to identify and evaluate and geologic formations that are favorable for the areas and geologic formations that are favorable for the occurrence of uranium deposits of specific minimum size and grade."