Tunnels.
Tunnels run for the development of a vein or lode, or for the discovery of mines, give the owner or owners the right of possession of all veins or lodes within 3,000 feet from the face of the tunnel to the same extent as if discovered from the surface, i.e., 1,500 feet on the lode; and locations on the line of such tunnels of veins or lodes not appearing on the surface, made by other parties after the commencement of the tunnel, and while the same is being prosecuted with reasonable diligence, shall be invalid; but failure to prosecute the work on the tunnel for six months shall be considered an abandonment of the right to all undiscovered veins or lodes on the line of said tunnel. To avail themselves of the benefits of the law, the proprietors of a mining tunnel will be required to give a proper notice of their tunnel location, by erecting a substantial post, bound or monument at the face or commencement thereof, upon which should be posted a good and sufficient notice, giving the names of the party or parties claiming the tunnel right, the actual or proposed course or direction, height and width. At the time of posting notice and marking out the lines of the tunnel, as aforesaid, a full and correct copy of such notice and location must be filed for record with the mining recorder for the district.