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Mined areas of the Danville Coal in Illinois

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   U.S. Geological Survey Central Region Energy Resources Team, 2002, Mined areas of the Danville Coal in Illinois: U.S. Geological Survey Professional Paper 1625-D, U.S. Geological Survey, Denver, Colorado.

   This is part of the following larger work.

   (ed.), J.R. Hatch , and (ed.), R.H. Affolter , 2002, Resource Assessment of the Springfield, Herrin, and Danville and Baker Coals in the Illinois Basin: U.S. Geological Survey Professional Paper 1625-D, U.S. Geological Survey, Denver, Colorado.

   This is part of the following larger work.

   U.S. Geological Survey, 2002, National Coal Resource Assessment: U.S. Geological Survey Professional Paper 1625, U.S. Geological Survey, Denver, Colorado.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -90.9894

   East_Bounding_Coordinate: -87.4788

   North_Bounding_Coordinate: 41.4859

   South_Bounding_Coordinate: 37.3815

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1998

   Currentness_Reference:

   The data library from which this coverage was extracted was updated with available information in 1996. The currentness of the update source documents is largely dependent on the mining companies that provide the requisite documentation.
   

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Point (164)
      • String (425)
      • GT-polygon composed of chains (165)

   2. What coordinate system is used to represent geographic features?

      The map projection used is Lambert Conformal Conic.

      Projection parameters:

      Standard_Parallel: 33

      Standard_Parallel: 45

      Longitude_of_Central_Meridian: -89.5

      Latitude_of_Projection_Origin: 33

      False_Easting: 914400.0 meters

      False_Northing: 0.0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 4.0
      Ordinates (y-coordinates) are specified to the nearest 4.0
      Planar coordinates are specified in feet

      The horizontal datum used is NAD27.
      The ellipsoid used is CLARKE1866.
      The semi-major axis of the ellipsoid used is 6378206.4 meters.
      The flattening of the ellipsoid used is 1/294.98.
      

7. How does the data set describe geographic features?

   Entity_and_Attribute_Overview:

   The attribute items are in typical ARC/INFO feature class format.

   
   COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC
       1  AREA                   4    12     F      3
       5  PERIMETER              4    12     F      3
       9  COAL7_MINES#           4     5     B      -
      13  COAL7_MINES-ID         4     5     B      -
      17  M-INDEX                4     4     I      -
      21  PIT                    2     2     I      -
      23  TYPE                   1     1     C      -
      24  METHOD                 1     1     C      -
      25  M-INDEX2               4     4     I      -
      29  PIT2                   2     2     I      -
      31  TYPE2                  1     1     C      -
      32  METHOD2                1     1     C      -
      33  M-INDEX3               4     4     I      -
      37  PIT3                   2     2     I      -
      39  TYPE3                  1     1     C      -
      40  METHOD3                1     1     C      -
      41  START-YEAR             4     4     I      -
      45  FINAL-YEAR             4     4     I      -
        **  REDEFINED ITEMS  **
      17  MINE                   6     6     C      -
      25  MINE2                  6     6     C      -
      33  MINE3                  6     6     C      -
   
    Polygon attributes requiring further explanation are:
   
    M-INDEX(n) - Unique ISGS identification number assigned
    to each mine.  A polygon can represent up to three mines because
    of overlapping mines in different seams or surface mining through
    shallow underground mines, or due to changing mine ownership and/or
    permit status over time.
   
    PIT(n)     - Pit number.  This is used to distinguish between
    different pits mined by a single surface mine or different seams
    mined by an underground mine.  PITn is associated with M-INDEXn.
    For underground mines, this field is sometimes used to designate
    coal seam number for polygons.
   
    TYPE(n) - Polygon code associated with M-INDEXn.
    A - Unmined area between mines
    B - Indefinite mine boundary (surface mine)
    H - Auger mine
    K - Unmined area within a mine
    L - Underground mine
    M - Surface mine
    N - Indefinite mine boundary (underground mine)
    (no value) - other unmined areas
   
    MINE  - Concatenation of M-INDEX  and PIT  items.
    MINE2 - Concatenation of M-INDEX2 and PIT2 items.
    MINE3 - Concatenation of M-INDEX3 and PIT3 items.
   
    START-YEAR - Year that mine started operation.
    1800 = sometime in the 1800's
    0 = unknown
   
    FINAL-YEAR - Year that the mine closed.
    0 = unknown
    9999 = mine is active.
   

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • U.S. Geological Survey Central Region Energy Resources Team

2. Who also contributed to the data set?

    Data capture, compilation and library maintenance:
    Marge Bargh, Colin Treworgy, other ISGS Coal Section staff
    Compilation of library tiles to create this product: Cheri Chenoweth
    Documentation: Cheri Chenoweth
    Quality Review: Colin Treworgy
   

3. To whom should users address questions about the data?
   Colin Treworgy
   Illinois State Geological Survey
   615 East Peabody Drive
   Champaign, Illinois 61820
   USA
   

   217-244-2422 (voice)
   217-333-2830 (FAX)
   colin@isgs.uiuc.edu
   

   Hours_of_Service: 8:00 a.m. - 5:00 p.m., Monday-Friday

   Contact_Instructions:

   Contact this individual ONLY for specific information about the use of this data set. For general questions about distribution, or availability of other data, please contact the Database Administrator listed under the Distribution_Information section.

Why was the data set created?

This coverage was compiled and updated between May 1 and May 7, 1998 in order to provide a current, state-wide coverage showing surface and underground coal mines of the Danville Coal seams as of January 1, 1996. Due to the wide range of source map scales, these data are suitable for regional applications only at the 1:100,000 scale or smaller.

How was the data set created?

1. From what previous works were the data drawn?

   (source 1 of 3)

   mines, various coal , coal mine outline maps and other locational information.

   Other_Citation_Details:

   Contact the Coal Section of the Illinois State Geological Survey for detailed source map information.

   Type_of_Source_Media: paper

   Source_Contribution: mine outlines

   (source 2 of 3)

   Bargh, M.H., C.G. Treworgy, et al., 1996, Map and Directory of Coal Mines in Illinois, County Series: Illinois State Geologic Survey, Champaign, Illinois.

   Type_of_Source_Media: paper

   Source_Contribution: Outlines for mines and information on seam mined.

   (source 3 of 3)

   Bargh, M.H., C.G. Treworgy, et al., 1993, Directory of Coal Mines in Illinois, 7.5-Minute Quadrangle Series: Illinois State Geologic Survey, Champaign, Illinois.

   Type_of_Source_Media: paper

   Source_Contribution:

   Most updates to abandoned mines from these studies. All quadrangle series published through 1997 included in these mine outlines.
   

2. How were the data generated, processed, and modified?

   Date: 1998 (process 1 of 4)

   These data are stored in county by county tiles in the ISGS Coal Section GIS database. To prepare this statewide map, coal mine outlines from all county tiles containing this theme were joined.
   The following coal library coverages were MAPJOINed to create an interim coverage called mpy2490:
   

    /coal4/library/c045/m2490py
    /coal4/library/c099/m2490py
    /coal4/library/c105/m2490py
    /coal4/library/c113/m2490py
    /coal4/library/c123/m2490py
    /coal4/library/c143/m2490py
    /coal4/library/c145/m2490py
    /coal4/library/c165/m2490py
    /coal4/library/c183/m2490py
    /coal4/library/c199/m2490py
   

   Date: 1998 (process 2 of 4)

   Coverage mpy2490 was edited to check for internal consistency and to add polygon labels.

   Date: 1998 (process 3 of 4)

   mpy2490 was dissolved to remove internal county lines from the individual mines, resulting in coverage m2490py to be consistent with coverages in separate county directories.

   Date: 31-Dec-1998 (process 4 of 4)

   Data set processed into General-Use GIS Database by D. Nelson. Dropped empty annotation feature class. Removed items COUNTY and PT/PY to conform with coal5_mines and coal6_mines. Dropped METHOD(x) items as advised by C. Chenoweth. Redefined MINE(X) items in to conform with coal5_mines and coal6_mines. Data set was copied from /coal13/natl-coal-assmt/mine-coverages/m2490py
   to /gisdb/illinois/minres/coal7_mines.

3. What similar or related data should the user be aware of?

   Illinois State Geological Survey, 1994, Coal Resources of Illinois: Danville (No. 7) Coal: ISGS GIS Database /gisdb/illinois/minres/coal7-84, Illinois State Geological Survey, Champaign, Illinois.

   Other_Citation_Details:

   This is the automated version of the Coal Resources Map (for the same coal seam) by J.D. Treworgy and M.H. Bargh (1984).
   

   Chenoweth, Cheri, 1998, Areas Mined for the Springfield (No. 5) Coal in Illinois: ISGS GIS Database /gisdb/illinois/minres/coal5_mines, Illinois State Geological Survey, Champaign, Illinois.

   Online Links:

   • Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal5_mines.html>

   Chenoweth, Cheri, 1998, Areas Mined for the Herrin (No. 6) Coal in Illinois: ISGS GIS Database /gisdb/illinois/minres/coal6_mines, Illinois State Geological Survey, Champaign, Illinois.

   Online Links:

   • Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal6_mines.html>

   Stiff, Barbara J., 1997, Areas Mined for Coal in Illinois - Part 1: ISGS GIS Database /gisdb/illinois/minres/coalmines_py, Illinois State Geologic Survey, Champaign, Illinois.

   Online Links:

   • Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coalmines_py.html>

   Stiff, Barbara J., 1997, Areas Mined for Coal in Illinois - Part 2: ISGS GIS Database /gisdb/illinois/minres/coalmines_py2, Illinois State Geologic Survey, Champaign, Illinois.

   Online Links:

   • Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coalmines_py2.html>

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?

   The attributes in this coverage are accurate with respect to the source data library. Contact the ISGS Coal Section for information regarding the accuracy of the source data library.
   

2. How accurate are the geographic locations?

   The horizontal positional accuracy is verified by visual comparison of source and hard copy plots. The source materials used are commonly paper copies (ozalid or hand traces) or microfilm prints of original mine maps supplied by mining companies or other parties. ISGS staff have not verified the accuracy or validity of the original source material. Some original maps are not drawn on a cartographic base. Due to the physical and cartographic quality of the source materials used, horizontal positions may be in error by 500 feet or more. For applications requiring precise horizontal accuracy, the original source maps should be consulted.
   

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   This data set does not represent a complete collection of the location of mine shafts, slopes, and other openings. Lines delineate the approximate outer boundary of individual mines (if known) or general mined areas. Interior mine boundaries such as pillars or small blocks of unmined coal are commonly not depicted. Mines whose extent is not known or which only mined a few acres are not included in this coverage. Not all the attribute data
   available for these coal mine locations are included in this coverage. For more detailed information contact the Coal Section of the Illinois State Geological Survey.
   

5. How consistent are the relationships among the observations, including topology?

   Polygon and chain-node topology is present. The coverage was checked for complete chain-node topology (no dangling arcs, except where appropriate), polygon labels (one per polygon, except for universal polygon), boundary values appropriate for map projection and map units, and appropriate "fuzzy" tolerances. There are no known arc or polygon attribute values outside the appropriate value domains.
   

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none

Use_Constraints: none

1. Who distributes the data set? (Distributor 1 of 1)
   USGS Information Services
   Box 25286 Denver Federal Center
   Denver, CO 80225
   USA
   

   1-888-ASK-USGS (voice)
   303-202-4693 (FAX)
   ask@usgs.gov
   

2. What's the catalog number I need to order this data set?

   USGS Professional Paper 1625-D

3. What legal disclaimers am I supposed to read?

   This Compact Disc-Read Only Memory (CD-ROM) publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
   Although all data and software published on this CD-ROM are used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Geographic features and attribute data in format ArcView shapefile (version 1.0)
     Network links:	<http://energy.cr.usgs.gov/coal/nca/>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 30-Dec-1998
Last Reviewed: 28-Mar-2002
To be reviewed: 30-Dec-2000

Metadata author:

Illinois State Geological Survey
c/o Colin Treworgy
615 East Peabody Drive
Champaign, Illinois 61820
USA

217-244-2422 (voice)
217-333-2830 (FAX)
colin@isgs.uiuc.edu

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)