Just MH-65C 6581 from CGAS Humboldt Bay, however this was taken in Meadowlake Airport east of Colorado Springs. They were a surprise visit to the 2009 USCG picnic. Ferry flight from AR&SC at CGAS Elizabeth City. Colorado Springs sits above 6000 MSL, so it's a rare day to see a USCG helo out here.
Haven't processed this photo yet at all. Just wanted initial ideas/suggestions.