This is what I got from the DOW
Hello Donald,Generally a person is allowed to carry (not concealed) a sidearm while on public lands within Colorado including during a hunting season. There are exceptions for persons convicted of a felony to be in possession of any firearm. During hunting seasons, if a person is hunting, there maybe additional specific requirements to the caliber of the firearm if itis being used to hunt. If the firearm is a sidearm and is carried for personal protection during a hunting season, there are no restrictions and during hunting seasons, firearms may be carried under clothing as the concealed carry laws exempt persons who carry during and participatein a hunting season.
Sandra DorffeldCustomer Service RepresentativeColorado Division of Wildlife6060 BroadwayDenver Co 80216303-291-7581