Colo. Const. art. XV, § 13

Telegraph lines - consolidation. Any association or corporation, or the lessees or managers thereof, organized for the purpose, or any individual, shall have the right to construct and maintain lines of telegraph within this state, and to connect the same with other lines, and the general assembly shall, by general law, of uniform operation, provide reasonable regulations to give full effect to this section. No telegraph company shall consolidate with, or hold a controlling interest in, the stock or bonds of any other telegraph company owning or having the control of a competing line, or acquire, by purchase or otherwise, any other competing line of telegraph.