Small Mine Development L.L.C.

Welcome to the brilliant world of underground mining - Small Mine Development builds and operates America’s underground mines. Our mission is to be the leader in safe, productive and innovative mining solutions. We specialize in underground, hardrock mining and look forward to advancing your project from exploration, through engineering, development, production mining, and, ultimately, closure. Our experts are here to assist you every step of the way with your project.


Company History

Our mission is to be the leader in safe, productive and innovative mining solutions. Ron Guill founded SMD in 1982. Mr. Guill is a former Marine Corps officer and graduated from the Mackay School of Mines in Reno, Nevada with a degree in Mining Engineering. For 28 years, Ron has placed SMD on the leading edge of mechanized underground mining innovation. In 1984, SMD pioneered the use of 100% cemented backfill in underhand cut and fill mining. This mining method has been proven in challenging ground conditions and is now widely used in Nevada underground gold projects. SMD portaled into its first pit highwall at the Copperstone Mine in 1989. We brought Cubex RC drilling underground in the early 1990’s and have proven the extreme value and versatility of this drilling method for exploration and production. Remote mucking capabilities were added to the mining fleet in the late 1980’s. SMD recognized the safety and productivity advantages to utilizing mechanized bolting and now has one of the largest fleets of mechanical bolters in the United States. Wet shotcrete capabilities were added to several projects in the mid-1990’s proving the safety of this ground support method. We have also been on the forefront of solving health related issues underground. Noise and increasingly stringent Diesel Particulate Matter regulations force continuous improvement in our efforts. When others said that cabbed equipment wouldn’t work underground, we started purchasing our prime equipment with operator cabs. We have been actively installing cabs on our existing fleet of equipment as well. We partnered with a “premium” biodiesel provider to assist in overcoming plaguing issues surrounding successful implementation of bio-diesel. These efforts have allow one of fleets to accumulate 30,000 engine hours over the last 18 months without one fuel related issue. The landscape is continually changing, but we willingly participate in improving conditions for our workforce. These are just a few of the innovations currently in use on a daily basis by our experienced miners. They have all given SMD the unique ability to provide safer, more productive, and more cost-effective mining solutions to the underground mining industry.