Harney silt loam was adopted as the Kansas State Soil on April 12, 1990, when Governor Mike Hayden signed Senate Bill 96. Kansas is one of only seven states to have named a state soil. It took five years through a strong grassroots effort to get Harney named as the state soil. |link|
Kansas state soil evolved under prairie grasslands and over eons developed the rich, deep topsoil used by farmers and ranchers today.