Colo. Rev. Stat. § 38-30.5-107
If it is determined that conditions on or surrounding a property encumbered by a conservation easement in gross change so that it becomes impossible to fulfill its conservation purposes that are defined in the deed of conservation easement, a court with jurisdiction may, at the joint request of both the owner of property encumbered by a conservation easement and the holder of the easement, terminate, release, extinguish, or abandon the conservation easement. If condemnation by a public authority of a part of a property or of the entire property encumbered by a conservation easement in gross renders it impossible to fulfill any of the conservation purposes outlined in the deed of conservation easement, the conservation easement may be terminated, released, subordinated, extinguished, or abandoned in whole or in part through condemnation proceedings. A conservation easement in gross for which a Colorado state income tax credit has been allowed may not in whole or in part be released, terminated, extinguished, or abandoned by merger with the underlying fee interest in the servient land or water rights. Any release, termination, or extinguishment of a conservation easement under this section must be recorded in the records of the office of the clerk and recorder in the county where the conservation easement is located.
C.R.S. § 38-30.5-107