The following report the the first set that documents the results of the airborne gamma radiation and total magnetic field survey flown for the Jordan Valley quadrangle in Oregon and Idaho in 1979.

Log histogram for Challis 1° x 2° NTMS Areas, Idaho

Graphs for Challis 1° x 2° NTMS Areas, Idaho: Data Report

Graphs for Challis 1° x 2° NTMS Areas, Idaho: Data Report

The following data report presents results of ground water and stream sediment reconnaissance in the Challis quadrangle, Idaho, where 1428 sediment samples were collected.

Graphs for Challis 1° x 2° NTMS Areas, Idaho: Data Report

Graphs for Challis 1° x 2° NTMS Areas, Idaho: Data Report

Graphs made for Challis 1° x 2° NTMS Areas, Idaho: Data Report

Data gathered at ground water sites in the Challis quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.

Tabulated data gathered at surface sediment and groundwater sites in the Challis quadrangle, including applicable reconnaissance measurements and elemental analyses.

Detailed descriptions of the data report for Challis quadrangle, including (1) sample collection and field measurements, (2) formats, abbreviations, and codes in the data tables, (3) graphs and maps, and (4) quality assurance programs for sample collection and analysis.

This report describes an investigation of the effects of stream channelization on fish and macro-invertebrates in low gradient reaches of Blacksmith Fork River and the Logan River in the floodplain of Cache Valley in northern Utah. Channelization adversely affected both fish and macro-invertebrate populations and biomass, with the severity of impact directly related to the amount and duration of disturbance of the physical habitat.

Map showing the geologic features of the Wells quadrangle project area in Nevada, Utah, and Idaho. Scale 1: 250,000.

The following data report presents results of ground water and stream/surface sediment reconnaissance in the Pocatello quadrangle, Idaho.

Data gathered regarding ground water samples in the Pocatello quadrangle, including areal distribution maps, histograms, and frequency distribution plots for U, F, Na, Mg, Cl, Mn, Br, Dy, V, conductivity, alkalinity, pH, U x 1000/conductivity, He, and scintillometer readings.

Tabulated reconnaissance data and elemental concentrations in ground water samples from the Pocatello quadrangle.

Data gathered regarding sediment samples in the Pocatello quadrangle, including areal distribution maps, histograms, and frequency distribution plots for U, Th, Hf, La, Ce, Sm, Eu, Dy, Yb, Lu, Al, V, Ti, Mn, Fe, Sc, Na, conductivity, alkalinity, log U/Hf, log U/Th, log U/La, log U/(Th + Hf), and scintillometer readings.

Tabulated reconnaissance data and elemental concentrations in sediment samples from the Pocatello quadrangle.

Data gathered regarding surface water samples in the Pocatello quadrangle, including areal distribution maps, histograms, and frequency distribution plots for U, F, Na, Mg, Al, Cl, Mn, Br, Dy, V, conductivity, alkalinity, pH, and U x 1000/conductivity.

Tabulated reconnaissance data and elemental concentrations in surface water samples from the Pocatello quadrangle.

Detailed descriptions of the data report for Pocatello quadrangle, including (1) sample collection and field measurements, (2) formats, abbreviations, and codes in the data tables, (3) graphs and maps, and (4) quality assurance programs for sample collection and analysis.

From summary: This report contains data collected during a geochemical survey for uranium in the Ashton National Topographic Map Series (NTMS) quadrangle of eastern Idaho, southwestern Montana, and northwestern Wyoming (Fig. 1) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide lydrogeochemical and Stream Sediment Reconnaissance (HSSR).

Report documenting the results of chemical analysis for 1580 water and 1720 sediment samples in the Elk City quadrangle, Idaho/Montana. It includes an overview of the area, methods, data analysis, and evaluation.

Report of elemental date from a Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Hamilton National Topographic Map Series (NTMS) quadrangle in Montana/Idaho: "The HSSR is part of the United States Department of Energy's National Uranium Resource Evaluation (NURE), which is designed to provide improved estimates of the availability and economics of nuclear fuel resources and make available to industry information for use in the development and production of uranium resources" (p. 1).