C.R.S. § 18-4-504: Third degree criminal trespass.

(1) A person commits the crime of third degree criminal trespass if such person unlawfully enters or remains in or upon premises of another.

(2) Third degree criminal trespass is a petty offense, but:

(a) Repealed.

(b) It is a class 5 felony if the person trespasses on premises classified as agricultural land with the intent to commit a felony thereon; except that it is a class 6 felony if the agricultural land did not have a fence securing the perimeter.