Introduction: During the year 1952-1953, research on the Boulder batholith program was largely devoted to basic mineralogy studies of the "siliceous reef" and, to the extent possible at that time, the "base metal" deposits.

From introduction: The present paper is concerned with fisherman-expenditures, fisherman-use, and yield of the fisheries involved, although some data on other aspects of the fishery were obtained.

Abstract: A number of radioactivity anomalies and secondary uranium minerals have been found in the Rimini area near the northwestern margin of the Boulder batholith. Most of the anomalies are associated with chalcedonic vein zones that consist of one or more veins of cryptocrystalline and fine-grained quartz in silicified quartz monzonite and alaskite. Seventeen of the anomalies were found along veins that contain base and precious metals; nine were along veins in the vicinity of the village of Rimini from which there has been production of lead, silver, zinc, and gold.

From introduction: The purpose of the study is to evaluate the economic possibilities of radioactive lignites and to determine the geologic factors controlling the accumulation of uranium in lignite.

A report about uranium bearing lignite beds which are 1.5 to 8 feet thick that occur in the Fort Union formation of the southern part of the Ekalaka Hills, Carter County, Montana.

Report presenting new data on the age of the Boulder, Philipsburg, and Idaho batholiths of western Montana.

Report regarding an investigation on fishing pressure, yield, and expenditures by fishermen on the Madison river in Montana.