At about 3:30 Thursday afternoon, the 911 call went in to the Barton County dispatcher from the Great Bend Co-op elevator – an employee was mired in golden quick sand-like grain inside a massive bin.The day was warm and a southerly wind whipped up clouds of grain dust and sand that pelted the imperiled employee’s co-workers as they tethered themselves with a rope and climbed into the cavernous metal structure. Inside it was pitch black, save their flashlights and a sprinkling of light leaking through the small hatch at the bottom.In a matter of minutes, elements of the Great Bend Fire Department arrived, including firefighters, emergency medical technicians and members of the department’s elite Technical Rescue Team. A few minutes later, the “victim” was hoisted out, strapped to a backboard.