Union Reservoir Epic Sunrise Longmont Colorado Boulder County 2-14-2011. Buy this fine art Colorado sunrise at Union Reservoir nature photography photograph Image available as Giclee Print, Fine Art Print, Canvas Art , Framed Print, Poster and greeting cards. Available all sizes, custom framed or unframed to decorate your office walls, home walls, cafe, restaurant, boardroom, waiting room or almost any commercial space. With Fast, Secure world wide shipping to your door. Wall prints are also a great gift idea.