 | | Report (issue) | | Deposits of the Jefferson City QuadranglJefferson and Lewis and Clark Counties, Montana By GEORGE E....1922Geology and mineral deposits of the Jefferson City quadrangl~, ·Jefferson and Lewis and Clark Counties, Montarra...deposits of the Jefferson City quadrangle, J e:fferson and Lewis and Cl ark Counties, Montana. 1963. (Card...2) 1 1. 'Geology-Montana-.Jefferson City quadrangle. 2. Ore-depositsMontana-Jefferson C:ity quadrangle...quadrangle. 3. Mines and mineral resources-Montana-Jefferson City quadrangle. I. Pinckney, Darrell Mayne, 1925- |  | | Report (issue) | | ASSESSMENT OF THE HELENA NATIONAL FOREST, WEST-CENTRAL MONTANA Edited by R.G. Tysdal 1 , Steve Ludington2 , and...imply endorsement by the U.S. Government. Denver, Colorado 2Menlo Park, California 1996 NONTECHNICAL EXECUTIVE...ASSESSMENT OF THE HELENA NATIONAL FOREST, WEST-CENTRAL MONTANA U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 96-683-A...in west-central Montana. It lies in the vicinity of Helena, the capitol city of Montana, and includes Federal...lands within parts of five counties: Broadwater, Jefferson, Meagher, Powell, and Lewis and Clark. * Gold |  | | Report (issue) | | PRELIMINARY REPORT ON THE COMET AREA JEFFERSON COUNTY MONTANA UNITED STATES DEPARTMENT OF THE INTERIOR...PRELIMINARY REPORT ON THE COMET AREA JEFFERSON COUNTY, MONTANA By George E. Becraft This report concerns... PRELIMINARY REPORT ON THE COMET AREA JEFFERSON COUNTY, MONTANA By George E. Becraft CONTENTS Page Page..... Comet mine ....................... Gray Eagle mine ................... Silver Hill mine................. Hope-Bullion ...................... Boulder Chief mine................. Younger deposits....... |  | | Report (issue) | | Historical Mining in the Basin and Boulder Mining Districts, Boulder River Watershed, Jefferson County, Montana...S. Geological Survey Cover. View from Eva May mine looking across Cataract Creek valley at Hoodoo Creek...Historical Mining in the Basin and Boulder Mining Districts, Boulder River Watershed, Jefferson County, Montana...effects of historical mining in the Boulder River watershed, Jefferson County, Montana.....................Geological Survey The Boulder River watershed study, Jefferson County, Montana ..................... |  | | Report (volume) | | Geophysical Union.. Transactions, American Institute of Mining and Metallurgical Engineers _..._ American Journal...Mines Special Reports _.......__ ________ Colorado Mining Association publications . Economic Geology...Geology. _ . _ ___... Engineering and Mining Journal _ , Geochimica et Cosmochimica Acta _ Bulletin, Geological...of Sedimentary Petrology_...__._ Mines Magazine Mining Engineering ........___..._...._____ Advances in...the areas and subjects are listed under States, "Colorado Plateau," "United States," or under a few subject |  | | Journal (volume) | | machines, ventilating apparatus, emery wheels, mining and milling machinery. Particis being given to...employ a large foroe of skilled workmen. a Mining and Scientific Press. through the rotten boards...and Salt- habitants, nearly all of whom follow mining for an occupation. From Huatajia it is about peter...Juan."J [Written Huatajia, is the most productive mining-camp In my last letter (page 448 of Dec. 14tb)...— [Jan. I, 18J0 of Roseburg, has opened a coal mine, located fourteen miles west of this place, that |
|
