Part 2. Maps, Surveys, and Boundary Lines
- 50-73-201. Operator to make map of coal mine.
- 50-73-202. Map of the surface.
- 50-73-203. Map of underground working.
- 50-73-204. Map for every seam.
- 50-73-205. Copies of maps for department.
- 50-73-206. Maps to be updated on basis of semiannual surveys.
- 50-73-207. Annual surveys in mines having only five people on shift.
- 50-73-208. Final survey and map update when mine abandoned or worked out.
- 50-73-209. Procedure when operator fails to furnish or update map.
- 50-73-210. Restrictions as to boundary lines.