Ron “Spike” Priestly joined the U.S. Navy out of high school, where he served as a Helicopter Electrician and Search and Rescue Swimmer. A Veteran of the First Gulf War, two Southeast Asia tours, and counter-drug operations in Southern California and Baja, Mexico, Spike was honored with four Battle Efficiency Awards as well as Expert Marksmanship Ribbons. After being honorably discharged from the Navy, Spike went on to hone his equipment operation skills in the public and private sector, winning awards at the National Snow & Ice Festival and the Colorado State Fair during his time as a District Foreman with Park County, Colorado. Spike has proudly worked as a field superintendent for GeoStabilization since 2007 before being promoted to General Superintendent in 2014. He is heavily experienced in every trade that GeoStabilization offers and has traveled all over the United States repairing rockslides and landslides, rock bolting, constructing GCS® walls, soil nailing, installing reinforced shotcrete, and constructing micropile walls and bearing piles. Spike has operated heavy equipment for over 20 years and has drilled in every state West of the Mississippi River (as well as many to the East).
A variation of karst sinkhole grouting is the grouting of mined coal seams and workings located below existing infrastructure that exhibit the potential to propagate to the surface and cause sinkholes and/or subsidence.