C.R.S. § 32-1-1604

Whenever a special district authorizes or incurs a general obligation debt, a notice of such action and a description of such debt in a form prescribed by the director of the division of local government in the department of local affairs shall be recorded by the special district with the county clerk and recorder in each county in which the district is located. The recording shall be done within thirty days after authorizing or incurring the debt.