UG Operations include Drilling, Blasting, Scaling, Material Transfer Load and Haul, Surveying, Dust Control and Air Quality Testing (Ventilation), Lighting and other Electrical Controls, Mine Road/Site Maintenance and Escapeways, and Mine Development. Headquartered in Lexington, Kentucky, the Mountain Companies (comprised of Mountain Enterprises, Mountain Materials, and Mountain Aggregates) have been providing asphalt paving and aggregate services to the state of Kentucky for decades.