The DOGM tag number system is briefly explained here since the numbers are used throughout
the documentation to refer to specific features. In this numbering system, each mine opening or feature is
identified by a unique site identification number which follows a standardized format. The identification
number (ID or state tag number) is a three part designation consisting of seven digits followed by two
letters followed by three final digits.
4060318HO003
The first digit indicates the mine location in relation to four
quadrants formed by the Salt Lake baseline and meridian (SLBM). Townships north and east of the
SLBM are coded “1.†The other three quadrants are numbered in counter clockwise order (NE= 1, NW=
2, SW= 3, SE= 4).
4060318HO003
The second and third digits indicate the township
4060318HO003
The fourth and fifth digits indicate the range
4060318HO003
The sixth and seventh digits indicate the section.
4060318HO003
These numbers are followed by letters
indicating the type of mine opening (H=horizontal adit, I=inclined adit, V=vertical shaft).
4060318HO003
In the case of
shafts and adits, the final letter designates whether the mine is open (O) or closed (C).
4060318HO003
These letters are
followed by numbers that are sequential numbers assigned as the openings were encountered during the
field inventory.
Example:
Thus, site number 4060318HO003 is located in the southeast quadrant of the state and is
the third open adit (horizontal opening) inventoried in Township 6 South, Range 3 East, Section 18.
the documentation to refer to specific features. In this numbering system, each mine opening or feature is
identified by a unique site identification number which follows a standardized format. The identification
number (ID or state tag number) is a three part designation consisting of seven digits followed by two
letters followed by three final digits.
4060318HO003
The first digit indicates the mine location in relation to four
quadrants formed by the Salt Lake baseline and meridian (SLBM). Townships north and east of the
SLBM are coded “1.†The other three quadrants are numbered in counter clockwise order (NE= 1, NW=
2, SW= 3, SE= 4).
4060318HO003
The second and third digits indicate the township
4060318HO003
The fourth and fifth digits indicate the range
4060318HO003
The sixth and seventh digits indicate the section.
4060318HO003
These numbers are followed by letters
indicating the type of mine opening (H=horizontal adit, I=inclined adit, V=vertical shaft).
4060318HO003
In the case of
shafts and adits, the final letter designates whether the mine is open (O) or closed (C).
4060318HO003
These letters are
followed by numbers that are sequential numbers assigned as the openings were encountered during the
field inventory.
Example:
Thus, site number 4060318HO003 is located in the southeast quadrant of the state and is
the third open adit (horizontal opening) inventoried in Township 6 South, Range 3 East, Section 18.
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