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# Keene Engineering

World leader in portable mining equipment!

## Sitemaps

- [XML Sitemap](https://keeneeng.com/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [DIY Small Scale Dredging](https://keeneeng.com/2023/05/17/diy-small-scale-dredging-2/) - We walk you through a quick rundown of which sluice is best for your needs. We review some of the essential recovery aspects of the sluice plus sluice box construction.
- [Mini Max Gold!](https://keeneeng.com/2023/10/09/mini-max-gold/) - Look at all the gold recovered by this young lady! Take a look at our Mini Max and get
- [RECOVERING GOLD WITH KEENE'S AMAZING “MINI-MAX"](https://keeneeng.com/2024/10/16/recovering-gold-with-keenes-amazing-mini-max/) - A friend and I recently tested one of Keene Engineering's new multi-use mining machines. It is called the “MINI-MAX. Our tests proved it to be a capable and versatile mining tool and, in spite of its small size, it really gets the gold. MAX is small, portable and especially lightweight for a mining machine. We powered it with
- [Sluice Videos!](https://keeneeng.com/2023/10/10/sluice-videos/) - We have some awesome videos for you on our famous Keene Sluices!Don't forget to check out all our awesome videos on our YouTube Channel!
- [The Holey-Moley Digger](https://keeneeng.com/2024/06/25/the-holey-moley-digger/) - Manufactured by Keene Engineering for Cat 6 Tools, the Holey-Moley Vacuum Assisted Post Hole Digger is a groundbreaking solution for fences, signposts, & more.
- [KT10 Trommel](https://keeneeng.com/2023/10/10/kt10-trommel/)
- [Yuba 2023](https://keeneeng.com/2023/10/10/yuba-2023/) - Pat Keene's fabulous Yuba River trip!
- [1oz White Plastic Vials - 5 Pack](https://keeneeng.com/2017/09/13/1oz-white-plastic-vials-5-pack/) - 5 VIALS FOR $1 PHONE ORDERS ONLY 800-392-4653
- [Directory of Buried or Sunken Treasures and Lost Mines of the United States](https://keeneeng.com/2017/05/02/directory-of-buried-or-sunken-treasures-and-lost-mines-of-the-united-states/) - ONLY $2 WAS $8.95 PHONE ORDER ONLY 800-392-4653 The following pages contain a State-by-State Summary of 2269 buried or sunken treasures and lost mines in the United States, having a total estimated value (where known) of more than $3,675,000,000. Detailed State Listings identify each of the 2269 items, showing the type of treasure, reported dollar
- [Treasure Guide Nebraska, Kansas, North Dakota, South Dakota](https://keeneeng.com/2017/05/02/treasure-guide-nebraska-kansas-north-dakota-south-dakota/) - ONLY $1.50 WAS $6.95 PHONE ORDERS ONLY 800-392-4653 An in depth guide and continuation of the Directory of Buried And Sunken Treasures And Lost Mines of the United States, going deeper into the treasure hotspots of Nebraska, Kansas, North Dakota, and South Dakota.
- [Exploring The Ghost Town Desert: A Guide to the Rand Mining Area, its Natural and Historic Points of Interest](https://keeneeng.com/2017/05/02/exploring-the-ghost-town-desert-a-guide-to-the-rand-mining-area-its-natural-and-historic-points-of-interest/) - ONLY $2.50 WAS $9.95 PHONE ORDERS ONLY 800-392-4653 The weekend explorer will find a fascinating area of California's rich gold rush history--The Rand Mining District--two hours north of Los Angeles. This is an area of wealth painfully scratched from the earth and all quickly lost, an era of ne'er-do-wells and dreamers, the lucky and the
- [Where To Find Gold In The Mother Lode By James Klein](https://keeneeng.com/2017/05/02/where-to-find-gold-in-the-motherload-by-james-klein/) - ONLY $2.50 WAS $9.95 DAMAGED COVERS PHONE ORDER ONLY 800-392-4653 History, origin and complete maps of key gold producing areas in the Motherlode, illustrating all counties and gold bearing districts, including methods, treasure stories, laws relating to dredging, the latest tools and equipment required and much more. 185 well illustrated pages. History, origin and
- [Successful Nugget Hunting Volume 1: A Metal Detecting Handbook & Field Guide by Pieter Heydelaar](https://keeneeng.com/2017/05/02/successful-nugget-hunting-volume-1-a-metal-detecting-handbook-field-guide-by-pieter-heydelaar/) - ONLY $2.50, NORMALLY $16.95. PHONE ORDERS ONLY 800-392-4653. Successful Nugget Hunting, Volume I, is a metal detecting handbook and field guide including maps, travel tips and history of gold nugget producing areas in Australia and the Southwestern United States. The author has over 20 years experience in gold prospecting and through hard work and research
- [The Sterling Legend: The Facts Behind the Lost Dutchman Mine by Estee Conatser](https://keeneeng.com/2017/05/02/the-sterling-legend-the-facts-behind-the-lost-dutchman-mine-by-estee-conatser/) - ONLY $1, WAS $7.95. ORDER BY PHONE ONLY 800-392-4653 In this book the legend, the myth, the rumors and the known facts of the famous Lost Dutchman Mine are given proportion and an adventurous perspective.
- [The Totally Revised Modern Metal Detectors by Charles L. Garrett](https://keeneeng.com/2017/05/02/the-totally-revised-modern-metal-detectors-by-charles-l-garrett/) - ONLY $2.50 WAS $14.99. PHONE ORDERS ONLY 800-392-4653
- [Backpacking Made Easy by Michael Abel](https://keeneeng.com/2017/05/02/backpacking-made-easy-by-michael-abel/) - ONLY $1, WAS $7.95. PHONE ORDERS ONLY 800-392-4653 With lively humor, this entertaining book enhances the joys and comforts of backpacking. What to take, ways to build endurance, and how to `keep it light'.
- [Gem Minerals of Idaho by John A. Beckwith](https://keeneeng.com/2017/05/02/gem-minerals-of-idaho-by-john-a-beckwith/) - ONLY $2 WAS $7.95 ORDER BY PHONE ONLY 800-392-4653 Perhaps no other part of the world has experienced more gem mineral-forming forces than Idaho. The geology of the region makes it a rockhound s paradise. John Beckwith s book is the perfect guide for beginners or visiting gem collectors.
- [Keene's HydroAir Sniping for gold on the Yuba with Pat Keene](https://keeneeng.com/2016/11/21/keenes-hydroair-sniping-for-gold-on-the-yuba-with-pat-keene/) - Pat Keene’s annual trip to the Yuba River working with the HydroAir. https://youtu.be/Pq3c7W5_erQ
- [Pat Keene's working with Mini Max on the Yuba.](https://keeneeng.com/2016/11/21/pat-keenes-working-with-mini-max-on-the-yuba/) - This is a video by Joey Wilson and Pat Keene working with the Mini Max High banker Concentrator and Sluice box. https://youtu.be/BuOunSfQ9KA
- [Pat's Yuba River Bash 2016 working with a Minelab SDC 2300](https://keeneeng.com/2016/09/29/pats-yuba-river-bash-2016-working-with-a-minelab-sdc-2300/) - https://youtu.be/oQuUhCdRAQQ
- [Keene HydroAir 12 Volt Hookah System](https://keeneeng.com/2016/09/27/keene-hydroair-12-volt-hookah-system/) - https://www.youtube.com/watch?v=BcMMiVCO_ds HydroAir Battery Powered Diving System - HAS HydroAir incorporates a lightweight and efficient 12-volt powered air supply diving system. The HydroAir utilizes a group 24 RV marine battery or other similar battery configuration. Equipped with a dual air compressor system that maximizes battery life by working only on demand by use of pressure switches.
- [RC1 Crusher and the New Cart System](https://keeneeng.com/2016/09/02/rc1-crusher-and-the-new-cart-system/) - This is our RC1 Rock Crusher in action. This video covers set up set up, operation and safety. We are also introducing a new RC1 Cart. The new cart is a amazing add on and makes the RC1 crusher easier to handle safer to work with and also will allow you to crush more material
- [New Prototype 210 Large Dry Washer Test #6](https://keeneeng.com/2016/07/08/new-prototype-210-large-dry-washer-test-6/) - This is our largest dry washer we have ever built. This is a high production machine that is designed to be feed with heavy equipment. We have been out in the field 6 times so far and we are getting very close to producing the first professional high production, Environmentally friendly dry washer in the
- [New A52F Folding Sluice Box](https://keeneeng.com/2016/06/03/new-a52f-folding-sluice-box/) - A super lightweight aluminum folding sluice box that incorporates the newest technology in rubber riffles design. We have taken the best parts of our previous folding plastic sluice and introduced our highly successful rubber riffle design. The rubber riffle design works fantastic in both fast and slow water conditions. We have tested this riffle design for
- [Keene 151 old style compared to a New 151S](https://keeneeng.com/2016/05/27/keene-151-old-style-compared-to-a-new-151s/) - I recently purchased and installed the Upgrade Kit bringing my old Keene 151 drywasher up to most of the specs of Keene's new 151S drywasher. The results have been simply amazing, not just in the way it operates, but, most importantly, in the amount of gold it is now recovering. How do I know it
- [4" Gravel pump system](https://keeneeng.com/2016/05/18/4-gravel-pump-system/) - This is one of the smallest gravel pump systems that we offer. We offer these in 4" and 6". These type of gravel pump can pass up to a 3.5" sphere on the 4" pump gravel pumps and 5.5" sphere on the 6" gravel pump. I have personally pumped around 20 yards per hour with
- [Field Test Report "NG MINING" New 151S Dry Washer Conversion](https://keeneeng.com/2015/12/17/field-test-report-keene-engineering-new-151s-dry-washer-conversion/) - System field Test Report General CommentsThere is measurable improvement in yields of finer gold with the 151S over the 151. Our test site has most gold in the -20 to +300 range and the increase in yield is significant. Assay reports will quantify that at a later date. Modification of the 151 to 151S was
- [Searching For Gold!](https://keeneeng.com/2015/12/17/searching-for-gold/) - Not surprisingly lots of people have recently discovered they’ve acquired an interest in gold. Gold’s value has risen substantially during the last ten years and the popularity of TV shows on gold prospecting and mining has intrigued many with the notion that perhaps they too could go out and find gold. Also true…many of these
- [New 6200 Super Max and Max Series Dredge](https://keeneeng.com/2015/12/16/new-6200-super-max-and-max-series-dredge/) - Original prototype dredge working in the Philippines in harsh conditions. Utilizing the sump and new concentrate sluices. We decided to split and create more surface area and reduce lift. It was a major deal to hang two boxes with 4 adjustments on each sluice and creating more deck space. Click here to see video
- [Welcome!](https://keeneeng.com/2015/11/20/hello-world/) - We are heading in to 2016 with a new look and a whole slew of new things that we are super excited about! Did you know that Keene Engineering is now on Social Media? Oh yeah! Make sure to follow us on Facebook so you can keep up with all the latest happenings, learn about

## Pages

- [World leader in innovative portable gold mining and prospecting equipment](https://keeneeng.com/) - The world leader in innovative portable mining¸ and prospecting equipment. Family-owned and operated since 1950.
- [AUTHORIZED DEALERS](https://keeneeng.com/dealers/) - A complete listing of authorized Dealers around the globe for Keene Engineering portable mining and prospecting equipment.
- [8 Inch Diamond and Gold Dredges](https://keeneeng.com/8-inch-diamond-and-gold-dredges/) - One of the main jewels in Keene's crown. This 8 inch Diamond and Gold dredge is sure to impress.
- [Get the Catalog...](https://keeneeng.com/catalog/) - Download a PDF of our full color catalog here!
- [Meet Our Super Max!](https://keeneeng.com/supermax/) - The Supermax Sump Dredge is an absolute beast that outperforms all other dredges in the world for micro-fine gold recovery!
- [Resources...](https://keeneeng.com/resources/) - We have assembled a collection of reference documents and help files for many of our products. Browse through and see what we have to offer! We also have a large selection of videos to peruse as well! Click here or check out our YouTube Channel!! If you don't see what you are looking for, feel
- [](https://keeneeng.com/4511-2/) - We've got something for everyone! Keep scrolling and see! SHOP THE BUNDLES NOW! Don't wait because these bundles expire at the end of 2024!
- [Terms of Service](https://keeneeng.com/terms-of-service/) - Last Updated: 09/01/2024.PLEASE READ THE FOLLOWING TERMS OF SERVICE AGREEMENT CAREFULLY. BY ACCESSING OR USING OUR WEBSITE (THE "SITE") OR OUR SERVICES, YOU HEREBY AGREE TO BE BOUND BY THESE TERMS AND CONDITIONS AND ALL TERMS INCORPORATED HEREIN BY REFERENCE. IT IS THE RESPONSIBILITY OF YOU, THE USER, CUSTOMER, OR PROSPECTIVE CUSTOMER TO READ THE
- [CONTACT](https://keeneeng.com/contact/) - Location for Keene Eng. as well as contact information.
- [MINI MAX!](https://keeneeng.com/mini-max-power-sluice/) - Are you ready for a little bit of awesome? This New Super Mini Max Power Sluice Concentrator unit is the most versatile package that we have ever offered. We have changed our updated machine from a double pump system to one single, larger pump. The new pump provides not only greater water flow and higher head
- [C7 Temp](https://keeneeng.com/c7-temp/)
- [News](https://keeneeng.com/news/)
- [Thanks!](https://keeneeng.com/thanks/) - Your request has been submitted and will be processed shortly!
- [Videos](https://keeneeng.com/videos/) - Check Out Our YouTube Channel!
- [Get In Touch With Us!](https://keeneeng.com/contact_2/) - We at Keene Engineering strive to provide our customers with the best quality and service possible. Our staff is committed to assisting you with your project needs. Whether you are just looking for that nugget in you're own back yard, or you are engineering a large scale reclamation project in the South Pacific, Keene can
- [Super Concentrator!](https://keeneeng.com/kscr/) - The new Super Concentrator is finally available after years of development and over 25 prototypes! Keene Engineering has developed the perfect concentrator riffle. Experience fine gold recovery never before achieved with a sluice box. This is a professional clean up tool, everything is constructed of quality parts and built to last. The first Hungarian riffle
- [Reclamation & Dredge Systems](https://keeneeng.com/reclamation-dredge-systems/) - One of the most common misconceptions of the average person is in thinking that dredges are strictly used for gold mining. While this is what they were originally developed for, the usefulness of the dredge today is as varied as are makes and models. From oyster harvesting and marina cleaning, to complex diamond plants
- [Privacy](https://keeneeng.com/privacy/) - Trust is at the heart of every successful, ongoing relationship. At Keene Engineering, earning and keeping your trust is the standard for everything we do. Because of this commitment, we never sell, rent or trade e-mail addresses with any other company. And we have installed state-of-the-art security software to protect your personal financial information when
- [Shop](https://keeneeng.com/shop/) - THis will lead to the shop once set up

## Categories

- [Uncategorized](https://keeneeng.com/category/uncategorized/)
- [News](https://keeneeng.com/category/news/)
- [Flea Market](https://keeneeng.com/category/flea-market/) - Shop for a limited supply of refurbished items, slight irregulars, and other items with a limited supply! Like something you see? Don’t hesitate or you might miss the deal! Give us a call at 1-800-392-4653 or email Mark at Mark@KeeneEng.com and get it before it’s gone!
- [Featured](https://keeneeng.com/category/featured/) - Latest and greatest

## Tags

- [large dry washer](https://keeneeng.com/tag/large-dry-washer/)
- [Commercial dry washer](https://keeneeng.com/tag/commercial-dry-washer/)
- [Fence Post Hole DIgger](https://keeneeng.com/tag/fence-post-hole-digger/)
- [Post Hole Digger](https://keeneeng.com/tag/post-hole-digger/)
- [Holey-Moley Post Hole Digger](https://keeneeng.com/tag/holey-moley-post-hole-digger/)
- [HoleVac](https://keeneeng.com/tag/holevac/)
- [Hole Digger](https://keeneeng.com/tag/hole-digger/)
- [Holey-Moley Digger](https://keeneeng.com/tag/holey-moley-digger/)