C.R.S. § 39-11-103: Treasurer to make affidavit of posting.

The treasurer shall also make, or cause to be made, an affidavit showing the posting of such list and notice, all of which affidavits shall be deposited by the treasurer with the county clerk and recorder to be filed and entered by the county clerk and recorder in the reception book or other permanent record of said office and there carefully preserved.