December 20, 2013
David "Marv" Shively poses with his snowcat at the top of Howelsen Hill. Shively says it takes an average of three hours to groom the ski hill.
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As he rumbles up the steepest part of Howelsen Hill at 10 p.m., David "Marv" Shively shakes his head every time his snowcat hits ice or leaves behind an imperfection.