You need a primary ID with a photo on it, CO ID or CO DL or Active Duty military with current orders. If the address isn't correct on the front, write it on the back with a sharpie and make sure you update it with the state before the BGC. If you need a secondary ID, it has to be issued from the state but doesn't have to have a photo, CO Vehicle Registration is the most common. In a pinch, go get a CO fishing license and make sure they update your address on it. It will work too.