Colorado Revised Statutes Title 34. Mineral Resources § 34-43-114. Affidavit of annual labor, improvements, or payment of federal claim rental fee--effect of filing--repeal

(1) On or before December 30th of each year following the end of any set time or annual period allowed for the performance of labor or making improvements upon any lode claim or placer claim, or for the payment of an annual claim rental fee as required by federal law in lieu of such work or improvements, the person on whose behalf such outlay was made, or such person's representative, may make and record in the office of the recorder of the county wherein such claim is situate an affidavit in substance as follows:

(2) Such affidavit when recorded shall be prima facie evidence of the performance of such labor or the making of such improvements or the payment of such annual claim rental fee. The original thereof, or a certified copy of the record of the same, shall be received as evidence accordingly by the courts of this state, and this class of evidence shall be receivable, where relevant or material, in all causes.