[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR77]

[Page 654]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 77_MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK 
AREAS OF UNDERGROUND COAL MINES--Table of Contents
 
                             Subpart M_Maps
 
Sec.  77.1200  Mine map.


    The operator shall maintain an accurate and up-to-date map of the 
mine, on a scale of not less than 100 nor more than 500 feet to the 
inch, at or near the mine, in an area chosen by the mine operator, with 
a duplicate copy on file at a separate and distinct location, to 
minimize the danger of destruction by fire or other hazard. The map 
shall show:
    (a) Name and address of the mine;
    (b) The property or boundary lines of the active areas of the mine;
    (c) Contour lines passing through whole number elevations of the 
coalbed being mined. The spacing of such lines shall not exceed 25-foot 
elevation levels, except that a broader spacing of contour lines may be 
approved by the District Manager for steeply pitching coalbeds. Contour 
lines may be placed on overlays or tracings attached to mine maps.
    (d) The general elevation of the coalbed or coalbeds being mined, 
and the general elevation of the surface;
    (e) Either producing or abandoned oil and gas wells located on the 
mine property;
    (f) The location and elevation of any body of water dammed or held 
back in any portion of the mine: Provided, however, Such bodies of water 
may be shown on overlays or tracings attached to the mine maps;
    (g) All prospect drill holes that penetrate the coalbed or coalbeds 
being mined on the mine property;
    (h) All auger and strip mined areas of the coalbed or coalbeds being 
mined on the mine property together with the line of maximum depth of 
holes drilled during auger mining operations.
    (i) All worked out and abandoned areas;
    (j) The location of railroad tracks and public highways leading to 
the mine, and mine buildings of a permanent nature with identifying 
names shown;
    (k) Underground mine workings underlying and within 1,000 feet of 
the active areas of the mine;
    (l) The location and description of at least two permanent base line 
points, and the location and description of at least two permanent 
elevation bench marks used in connection with establishing or 
referencing mine elevation surveys; and,
    (m) The scale of the map.