Report issued by the U.S. Bureau of Mines on the sampling of chrome ore deposits in the western United States. Physical properties of the samples collected are presented. This report includes tables.

From abstract: Nine uranium deposits occur in a small area west of Clancey, Jefferson County, Mont. These deposits are all in or near silicified fracture zones in quartz monzonite and related rocks of the Boulder batholith. The deposits contain pockets of uranium minerals in cavities in brecciated well-silicified rock. The primary uranium mineral pitchblende has been found in one pod. Secondary uranium minerals occur as fracture linings and in pore spaces in and adjacent to the silicified zones.

From introduction: This report evaluates four possible types of subsurface reservoirs for radioactive wastes in the Williston basin.

From introduction: This volume contains information and survey results pertaining specifically to the Shelby NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

From introduction: This volume contains information and survey results pertaining specifically to the Havre NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

From introduction: This volume contains information and survey results pertaining specifically to the Lewistown NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

A report about paid leave in Montana. It uses evidence from state-initiated paid leave programs and national studies to examine how paid leave benefits families, businesses, and the economy.

From introduction: The purpose of this report is to provide methods for estimating mean annual runoff and peak discharges for ungaged streams in northeastern and western Montana.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Great Falls quadrangle including results of data interpretation, significance factor profile maps, stacked profiles, and histograms.

This report provides results on the geological studies of uranium deposits discovered in the southeastern part of Montana.

This report provides the results to an airborne radiometric reconnaissance made in central Montana, the Sweetgrass Hills and Arch area, and Clancy area of the Boulder batholith that was completed in October 1953. This report is divided into three parts, each area is discussed separately according to its geology, the airborne procedures employed, and the conclusions reached.

From Purpose and Scope: "The Dubois Quadrangle, Idaho and Montana (Fig. 1), was studied to identify geologic environments and delineate areas favorable for uranium deposits. These reports summarized field observations and contained preliminary evaluations of geologic environments for uranium deposition. The identification of environments favorable for uranium deposition involved collection and interpretation of radiometric, geochemical, and geologic data."

Report issued by the U.S. Bureau of Mines discussing the mining procedures and minerals of Judith Basin County, Montana. History, geology, and mineral production of the Judith Basin County mines are presented. This report includes tables, illustrations, and maps.

Geophysical drilling logs recorded from hole MB-11 in the Missoula/Bitterroot basins area, Montana.