Colorado issues points against your license privileges' per violation, much like a drivers license. If you accumulate 20 points in a 5 year period, you will be sent in front of a hearing examiner that will recommend a suspension anywhere from a year to life depending on the severity of the charges.
Also Colorado differs from Arizona on the private property. In Colorado it does not need to be posted or marked or fenced. It is your responsibility to know where you are at all times. Hunting in Arizona was a shock to me with regards to private property and use the first time I hunted it. The legal postings and use are way different than Colorado.
In Colorado shed hunting is considered anything in the act of shed hunting, no touching/stashing/looking/scouting/marking with GPS. In the Gunnison basin there is also an hourly closure from sunset until 10am through May 15th because of the Sage Grouse mating season.
Doesn't take much to lose your license in Colorado, one minor slip up can put you over the threshold quite easily.
Inherently in Colorado picking up 1 antler could be the end of your hunting privilege's for a while. Shed hunting 5 points, possession of an antler 5 points, harassing wildlife 10 points.... you're at 20, Yep, there is a lack of enforcement, but the consequence is high if you do get caught. I don't think people are really aware of the risk, all for a stupid horn. I love picking up bone, but I'm not going to even chance it....