Colorado Revised Statutes Title 36. Natural Resources General § 36-5-108. Certificate of purchase--cancellation

The state board of land commissioners may cancel any certificate of purchase issued under this article because of a false or fraudulent application; a voluntary alienation, transfer, mortgage, or placing of a lien upon said land or the certificate of purchase; or for failure to settle upon or improve said land within a period of two years from the date of sale; or for failure to make payments of principal or interest as the same become due. Action shall be taken only after reasonable notice to the person named in said certificate, which action is subject to review by the district court of the county where such lands are situate, said proceeding for review to begin within sixty days from the date of the order of revocation.