Whether you are a geologist, history buff, or rockhound, this booklet will be a helpful guide to Utah?s mining districts. The booklet is divided up into three parts: the first part provides general information on what a mining district is, how many mining districts are in Utah, types of mineral deposits found at these districts, and landownership issues. The second part includes individual mining-district discussions containing information on location, production, history, geology, mineralogy, and current/future operations. The third part includes a glossary of geologic terms and other useful resources in the appendices, such as a descriptive list of minerals found in the districts, geologic time scale, and a list of mineral resources of the mining districts.

Sunrise illuminates Colorado Plateau’s canyon country. In the early morning light, cliffs radiate a rich red glow, and a sculptured panorama of sandstone is revealed in a rich palette of crimson, vermilion, orange, salmon, peach, pink, gold, yellow, and white. Nearby are black, spherical rock marbles (iron concretions) collecting in small depressions, like puddles of ball bearings. These natural spherical balls have been called various names such as iron nodules, iron sandstone balls, or moki marbles. However, we use the name “iron concretion” to describe both the composition (iron oxide that is the dark mineral which cements the sandstone grains) and the formed shape (concretion). What paints the sandstone such rich colors? Why is red a dominant color? Where do the black marbles come from? How did the black marbles form? Is there a relationship between sandstone colors and the marbles? This booklet explores the answers to these questions and poses other questions yet unanswered.

The abundant mineral resources in Utah have proved to be a great benefit to the people here and to the entire United States for over 160 years. This report summarizes the mineral and coal activity for 2010, taking into account historical context, over-all industry overview, and mineral outlook for 2011. The sections in this publication include: base- and precious metal production, industrial-minerals production, energy minerals production, exploration and development activity, new minerals information, and reclamation and the environment.

A reprint of the Original US Geological Survey Bulletin 1357. This publication is a catalog of locations, Geology, and production from the placer districts of Utah. This authors series was the definative resource for placer deposits in Utah.

Box Elder County displays a variety of lithologic types in each of the major rock divisions: sedimentary, igneous, and metamorphic, in a typical Basin and Range setting. True to the basic structure most of its mountain ranges generally trend north-south, but the Raft River Range trends east-west. Each mountain range exhibits a variety of structural situations: most stratigraphic units are folded and faulted, and many are intruded by igneous rocks. 251 pages + 3 plates

Railroads and mining in Bingham Canyon have gone hand in hand since the first railroad was constructed in the canyon in late 1873. Bingham Canyon in the early years was a gold and silver mining camp, and the railroads were small operations. Copper mining took hold in the late 1890s, and the mines, mining companies, and railroads that served them expanded rapidly. Bingham Canyon soon became the largest and richest mining district in the western United States and was the source for as much as a third of the copper mined in the nation. A variety of locomotives worked in the canyon, including a small number of Shay locomotives, several large articulated steam locomotives, and the nation's largest roster of electric locomotives. The last Bingham Canyon ore train ran in late 2001. While the railroad tracks have been removed, the mine itself is very much in full production and remains the source for 25 percent of the nation's copper production.