Saw the 4 unit helper set east of Broomfield today. No idea what was on front or rear ends at the time! Turned out to be a 2-4-2 power configuration. The result, I think, of 2 trains being combined into one massive one! Caught here, at north end of Longmont siding, a mile or so from Highland. A couple miles south of Berthoud.Figure at least 220 cars. Have not counted, can't confirm!