Height 9.5 Width 6.4
This map packet includes five maps printed on both sides. Maps one through four features gold, silver and gem deposits. The fifth map, side one, shows gold occurrances taken from an 1871 map. Side 2 is a page outlining the history of Oregon's mining operations and how to find and mark your own gold deposits. Every map tells the greatest story! Reported and known occurrences of gold and silver, as well as the popular gem deposits are identified in red. Many secrets of prospecting and mining are revealed in this collection! This publication is attractively packaged for display.
Map identifies locations of: gold and silver, agate, apache tears, bloodstone, carnelian, chalcedony, feldspar, fossils, garnet, geodes, jasper, limb casts, nodules, obsidian, opal, petrified wood, quartz, rhondonite, rhyolite, sagenite, serpentine, sunstones, thunder eggs, tourmaline, jade
The book's four sections give a short introduction to geology and Minnesota's place in geologic history; a historic timeline; a look at the metallic minerals, nonmetals, and water present today; and a geologic picture of today's Minnesota arranged in five geographical regions. This book is both a wonderful source of information for rock hounds and the perfect backpacking companion for tourists and outdoor enthusiasts. Lavishly illustrated with color and black-and-white photographs, as well as extensive graphs and maps, Minnesota's Geology will inform and delight for years to come.
"This is certainly one of the finest books about the geology of any state in the United States. It is written at a level that should satisfy the visitor, the student, and even most professionals." American Scientist
"A stunning guide . . . Minnesota's Geology will be as valuable to the rock hound or student as it is to a trained geologist." Duluth News-Tribune
"Minnesota's Geology sets a standard of excellence for books about the geology of a region. . . . an unusually well-written and well-balanced book." Science Books and Films
Richard W. Ojakangas and Charles L. Matsch are professors in the Department of Geological Sciences at the University of Minnesota, Duluth.
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