Colo. Rev. Stat. § 35-2-102
It is the duty of the assessor of each county in this state, at the time of making the annual assessment of property, to collect such statistics in relation to population, farm operations, the principal farm products, agricultural resources, and livestock of the county as may be required by the commissioner of agriculture, and it is the duty of all persons within this state having information relative to such matters to give such information to the assessor upon his request therefor. The original sheets on which such statistics are collected shall be forwarded to the commissioner of agriculture as soon as they are completed, but not later than June 1 of each year, immediately following their collection. From these original sheets there shall be compiled in the office of the state agricultural commission complete reports on all subjects covered for each county in the state. The blanks to be used by county assessors in the collection of statistics required by the state agricultural commission shall be supplied by the commission, and the form thereof shall be fixed by the commissioner of agriculture, after conference with a representative of Colorado state university and with the bureau of crop estimates of the United States department of agriculture through the official representative for Colorado. This report shall be issued subject to the provisions of section 24-1-136, C.R.S.
C.R.S. § 35-2-102