The bill authorizes a board of county commissioners to designate, by resolution, any public roads in the county as a section of a pioneer trail. A pioneer trail consists of public roads that follow as closely as possible the original trails or routes of travel of national historic significance. To make a designation, the board must identify all of the roads that make up the pioneer trail. If any of the designated roads are part of the state highway system, the board shall send a copy of the resolution to the department of transportation. A county may post, or allow to be posted, identifying and informative signs related to the pioneer trail along county roads.