I have a copy of the 2005 Fishing Guide which is a special edition of Colorado Outdoors magazine. It's published by the Colorado Department of Natural Resources, Division of Wildlife.
On page 39, there's a piece called, "A Riot of Rainbows". It contains all the catagories and number of submissions of the Master Angler Awards program for 2004.
Under the "Cutthroat Trout" catagory, it reads...
"Cutthroat trout, or cuttbows that look a lot like cutthroat trout, are put in this catagory. Snake River cutthroat that live in Spinney Mountain Reservoir or Elevenmile Reservoir are usually the biggest. A total of 21 fish were caught, 20-30 inches in length, with 9 being kept and 12 released."
I'm not sure how to interpret that paragraph because all the cuttbows I've seen resemble a rainbow more than a cutthroat. Perhaps a quick call or Email to the DOW would clear it up for us. I'm sure your fish will qualify in one or the other catagory.
Heck, if it doesn't... I'll make a patch for you myself, complete with 3-D pictures of Hooter girls holding your fish and a recordable sound chip that plays White Lion's, "More Human than Human!"