Tech. Sgt. Daniel Esselstrom, 341st Civil Engineer Squadron NCO in charge of explosive ordnance disposal and team lead for the demolition operation, walks away from the detonation site at the Big Seven mining complex Sept. 14, 2017, in Neihart, Mont. EOD was called out to survey and detonate explosive chemicals found in the chemical assay laboratory of an abandoned mining complex. (Courtesy photo)