Geologic Map of the Chisos Mountains, Big Bend National Park, Texas
By

Robert G. Bohannon

2011

Scientific Investigations Map 3140

This geospatial database has been approved for release and publication by the Director of the USGS.
Although this database has been subjected to rigorous review and is substantially complete, the
USGS reserves the right to revise the data pursuant to further analysis and review.  Furthermore, it is
released on condition that neither the USGS nor the United States Government may be held liable for
any damages resulting from its authorized or unauthorized use.

The database can be downloaded via the Web from http://pubs.usgs.gov/sim/3140/.  ArcInfo export files
and ArcView shapefiles may be extracted from a zip-compressed file (3140.zip).  In addition, an Adobe
Portable Document Format (PDF) file (SIM_3140.pdf) can be downloaded, from which paper copies
may be printed.  

The database contact is:      Paco Van Sistine 
                              303-236-5452
                              dvansistine@usgs.gov
                              U.S. Geological Survey
                              Box 25046, Mail Stop 980
                              Denver, CO  80225

The data were compiled from field mapping.  William R. Page (USGS) and Jack Reed (USGS) reviewed the
geologic map. Geologic names were reviewed by Thomas W. Judkins (USGS).

This geospatial database consists of ArcView shapefiles contained in a zip archive.  See the
list below.  Please refer to the file 3140_meta.txt for detailed metadata documentation for this
geospatial database.

In order to conform to naming limitations of shapefile format, coverage names were changed before
conversion to shapefiles. Therefore standard item names in shapefiles match shapefile names, not
coverage names as described in metadata document.  The prefix "scp" was dropped from all files
and a suffix indicating feature type was added ("_arc", "_point", "_label", or "_polygon") for conversion
of coverages to shapefile format.

List of files:
SIM_3140.pdf
3140_meta.txt

3140.zip:
   00README.txt
   3140_meta.txt
  
Shapefile
ChisoLatLongLines.dbf
ChisoLatLongLines.prj
ChisoLatLongLines.shp
ChisoLatLongLines.shx
chisos_geol_concealed.dbf
chisos_geol_concealed.prj
chisos_geol_concealed.sbn
chisos_geol_concealed.sbx
chisos_geol_concealed.shp
chisos_geol_concealed.shp.xml
chisos_geol_concealed.shx
chisos_geol_folds.dbf
chisos_geol_folds.prj
chisos_geol_folds.sbn
chisos_geol_folds.sbx
chisos_geol_folds.shp
chisos_geol_folds.shp.xml
chisos_geol_folds.shx
chisos_geol_label.dbf
chisos_geol_label.prj
chisos_geol_label.sbn
chisos_geol_label.sbx
chisos_geol_label.shp
chisos_geol_label.shp.xml
chisos_geol_label.shx
chisos_geol_line.dbf
chisos_geol_line.prj
chisos_geol_line.sbn
chisos_geol_line.sbx
chisos_geol_line.shp
chisos_geol_line.shp.xml
chisos_geol_line.shx
chisos_geol_pnts.dbf
chisos_geol_pnts.prj
chisos_geol_pnts.sbn
chisos_geol_pnts.sbx
chisos_geol_pnts.shp
chisos_geol_pnts.shp.xml
chisos_geol_pnts.shx
chisos_geol_poly.dbf
chisos_geol_poly.prj
chisos_geol_poly.sbn
chisos_geol_poly.sbx
chisos_geol_poly.shp
chisos_geol_poly.shp.xml
chisos_geol_poly.shx
Roads.dbf
Roads.prj
Roads.shp
Roads.shx
Trails.dbf
Trails.prj
Trails.shp
Trails.shx
UTMGrid-ChisosMap.dbf
UTMGrid-ChisosMap.prj
UTMGrid-ChisosMap.shp
UTMGrid-ChisosMap.shx