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This detailed geological survey, 'Part I. Geology and Ore Deposits of the Myers Creek Mining District. Part II. Geology and Ore Deposits of the Oroville-Nighthawk Mining District,' by Joseph Bertram Umpleby, offers a comprehensive analysis of two significant mining regions. Originally published in 1911, this report provides invaluable insights into the geological formations, ore deposits, and mining activities prevalent in these districts during the early 20th century. Umpleby’s meticulous research covers the geological structure, mineral composition, and the economic potential of the ore deposits found in both the Myers Creek and Oroville-Nighthawk areas. This historical document is a crucial resource for geologists, historians, and anyone interested in the mining history of the Pacific Northwest. The study’s enduring value lies in its detailed descriptions and scientific observations, making it an essential addition to any collection focused on economic geology and regional history.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
