(225 ILCS 705/34.03) (from Ch. 96 1/2, par. 3403)
    Sec. 34.03. The shaft, slope, or drift opening into any abandoned mine shall be filled with earth or other material, or be kept permanently enclosed and sealed. The time for completion of this work shall be in the discretion of the State Mine Inspector.
(Source: Laws 1953, p. 701.)