Mining operation faces scrutiny over rockfall hazards

In a recent government meeting, officials discussed the operational status and regulatory compliance of the Sheehan pit, a sand and gravel mining site located in Moffett County, Wyoming. The site, approximately 6.5 miles south of Savory, spans 8.75 acres and is situated on private land designated for rangeland use post-mining.

The meeting highlighted a recent increase in the surety bond for the operation, which rose by approximately $35,000 to a total of $86,599, deemed necessary to ensure adequate financial assurance for reclamation efforts. The mine operates primarily through surface excavation techniques, producing materials such as riprap, crushed rock, and gravel, with no groundwater present on-site.

Officials noted that mining activities are currently active and seasonal, influenced by weather conditions. The excavation process involves creating benches approximately 60 feet wide and 40 feet deep, with total excavation depths ranging from 100 to 120 feet. The site has limited overburden and topsoil, with suitable growth material stored for reclamation purposes.

Concerns were raised following a complaint from Moffett County regarding rock falls potentially originating from the mine site. An inspection conducted by the division revealed no immediate rock presence on the county road, but some rock was observed near the slope below the active mining area. In response, the division required the operator to submit a revised mine plan detailing measures to stabilize the slope and prevent future off-site damage.

The operator complied, submitting the updated plan by October 1, which outlines strategies for slope stabilization and further reclamation efforts. The meeting underscored the importance of regulatory oversight in ensuring safe mining practices and environmental protection in the region.