Jackson & Mariner Svaty (2018-03-15), Testimony in Support of H.B. 2650 (before the Kansas Senate), http://www.kslegislature.org/li_2018/b2017_18/committees/ctte_s_fed_st_1/documents/testimony/20180315_03.pdf, "Mr. Chairman, we would recommend that rather than naming the state rock "limestone", which is prevalent in different forms around the country, we should declare a limestone specific to Kansas as the state rock. Our recommendation would be Greenhorn limestone, the famous "post rock" limestone that has the largest distribution statewide,[sic - Cottonwood and other limestones have larger distributions in the state] running from Ford County all the way to Washington County [i.e., Smoky Hills], and can be seen as fenceposts everywhere in between.""