Mo. Rev. Stat. § 256.112: Mine map repository established in office of state geologist — contents to be maps of closed or abandoned underground mines.

For the purpose of public safety and the protection of property, the state geologist appointed pursuant to section 256.010 shall establish and maintain a "Mine Map Repository". The repository shall be located in the office of the state geologist and shall contain mine maps of closed or abandoned underground mines in this state.