Colo. Rev. Stat. § 38-2-104
It is lawful for the owner of any coal or other mineral lands, not contiguous to any railroad in this state, desiring to connect such lands with any railroad by means of a connecting railway spur, not to exceed fifteen miles in length, to construct and operate such connecting railway spur across any other lands lying intermediate between such coal or other mineral lands and any railroad with which such connection may be desired. In case the owner of such coal or other mineral lands is unable to agree with the owner of such intermediate lands for the purchase of any necessary rights-of-way across such intermediate lands for the purpose of constructing and operating such connecting railway spur as to the purchase price on such rights-of-way, then the owner of such coal or other mineral lands may exercise the right of eminent domain and condemn any rights-of-way across such intermediate lands necessary to make such connection and to construct and operate such connecting railway spur, and it may acquire title to such rights-of-way in the manner provided by law for the condemnation of lands for rights-of-way by railroad companies. All the laws of this state relating to the manner of exercising the right of eminent domain by railroad companies are hereby made applicable to such proceedings.
C.R.S. § 38-2-104