Mining, Prospecting and other information to help you in your quest for gold!

We value knowledge. We also value “free”. Files may not have an index as yet, but we just wanted to start getting information out there to anyone who is interested. Anything posted here is in the public domain and free to download, or pass along to others, as long as they are intact and in their entirety without deleting or changing the names(s) of authors or to remove original links from any text, be it in DOC format, PDF, TXT or any other electronic format.

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  1. ROCKTEST.doc
    Short guide to test rock for metal bearing ores
  2. Why crush rock.doc
    Why some people crush and evaluate hard dock deposits
  3. mineral zones.doc
    Simple tips using certain plants that need high mineralization to grow, using Google earth, etc to increase your chances of finding a good location
  4. FLOAT GOLD.doc
    Tips of using “float gold” to look for the source of the vein or outcrop
  5. oredump.pdf
    3 pgs, digging through the old ore dumps looking for good stuff!
  6. placer claims.pdf
    56 pgs Nevada Bureau of Mines and Geology 2002. Every thing you need to know about staking a placer claim (In Nevada at least)
  7. AZ gold placers.pdf
    Arizona Gold placer primary locations, 65 pgs (reprinted 1981
  8. Nevada_Mining_Districts.pdf
    VERY extensive information with maps of every mining district in Nevada, mines, productions, etc.
  9. Mohave placer locations.doc
    A 2 page short list of the better places in Mohave County Arizona for placer deposits
  10. anthills.pdf
    How to let the ants “prospect” for you!
  11. azsignifdeposits.xls
    Significant Excel file on the top 115 mining deposits in Arizona. Chart expands greatly to the right. Includes Production, post production, tonnage, reserves, type of rock, type of ores, etc.
  12. How to Mine and Prospect for Placer Gold.doc
    19 pages by J.M. West. All about placer mining and deposits, sampling,etc. Bureau of Mines publication, Information Circular 8517
  13. California Gold Region 6.doc
    Info on 6 of the gold regions of California. 14 pages
  1. mining.pdf
    Extensive PDF bookform “Anatomy of a Mine from Prospecting to Production” 1995 76 pg. about 825kb
  2. gold equipment.docx
    11 pages on concentrating equipment. Charts show which method (of 25 different methods) would work best for the mesh size of gold you are working with.
  3. Black sands highbanker tips.doc
    Tips on using a highbanker. Would also work in regards to things like recirculating sluices, etc. 4 pages.
  1. black sand recovery.pdf
    Method for recovering fine gold from black sand
  2. cleaning concentrates.doc
    Another method for cleaning up concentrates
  3. vinegar and salt method.doc
    A great way to clean up black sands that may contain values that don’t readily show up
  4. Leaching-Gold-and-Silver-Ores.pdf
    A comprehensive book on methods of leaching gold and silver ores. 281 pgs, C.H. Aaron (1881 original print.
  5. silver.pdf
    Extraction of Silver, 10 pgs, 1895, revised 1939
  6. Acids and Bases.doc
    A 6-page file on the different types of acids and bases, what you need them for, different chemical reactions, etc. Good to know!
  7. Assaying and Smelting.doc
    A 9-page file explains different types of assays and how to do them. Also explains about fluxes and smelting the gold dore bar or prill. Explains how to do a field assay. (That is, if you have something to crush the rock down quickly!)
  8. Black Sand.doc
    A 5-page file goes into “black sand” and why people lose values by tossing it out without crushing and assaying samples. Many never heard of Tellurides. This file goes into the different kinds, and some can hold 20 to 40 percent gold or silver by weight. If it’s in the bottom of the pan, and non-magnetic, best keep it!
  9. Colorimetric Assay of Gold.doc
    11 pages. As the name says.. and more on “assay”, quantitative and Qualitative analysis of assay materials, using things like spectrograph and methods of different chemicals to get different colors of the liquids to tell you what you may have there, and hopefully the quantity and quality of the sample.
  10. Filtering.doc
    6 pages. You would not think someone could write 6 pages about filters, but when you have literally hundreds of types of filters, and each with their own function and properties, well it’s not a good day if you use something too porous or too dense.
  11. Melting and Smelting.doc
    Quick 2 pages, The difference between the two, and what you need to know to be successful at it.
  12. Rules of Solubility.doc
    Short and Sweet! 2 Pages. What will dissolve in which acid and what won’t? Pretty much a “must-have” in the Lab!
  13. Super Clorox.doc
    2 pages, making a “super Clorox” as a reducing agent.
  14. Using Mercury.doc
    6 pages. All about Mercury, how to use it, how to make charged mercury, and just a great how-to article!
  15. Weights and Measures.doc
    3 pages. Good info! Learn why labs use the metric system, conversions, etc. I use the metric system 90 percent of the time in the lab, and sometimes in the shop. I find it easier to measure something at 85mm than xx/64th’s. It’s just quicker at times.
  16. How to Build and Operate a Miller Table.pdf
    24 “How To” on building your own Miller Table for cleaning up fine concentrates, By Gary Weishaupt. A nice design, and if you have the time it’s well worth the efforts
  17. 1891 Getting Gold.doc
    Extensive book (130 pages!) first published in 1891 by J.C. Johnson, deals with mostly stamp mills but has a lot of info on methods of finding ores, concentrating, crushing, processing, etc.
  18. diy-shaker table.pdf
    11 pages, including pictures to build a mini hand crank shaker table. says it will to “micron gold” like 150 mesh and finer.
  19. gold spiral build kit.pdf
    Build your own gold spiral! 8 pages with diagrams. Some parts you will need to purchase, some you can make, some you can scrounge!
  • 1. AZ1887.tif   (Arizona map, 1887)  size: 95.7mb
  • Arizona_1895.jpg  (Arizona map 1895) size: 1.7 mb
  • az-nm.jpg (Arizona / New Mexico.  This map shows part of Arizona “Pah-Ute” county, which was part of Mohave county, AZ
  •  az_mine1b.jpg  (Western AZ map of Geological survey, 1912 of metal locations 1.2 mb
  • az_mine2.jpg     (Eastern half of AZ map of Geological survey 1912 of metal locations 626kb
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