This database is not meant to be used or displayed at any scale other than 1:500,000.
April 1995, An update was done solely for the purpose of adding the abilitly to plot to an HP650c plotter. Two new ARC/INFO plot AMLs along with a lineset and shadeset for the HP650C design jet printer have been included. These new files are COLORADO.650, INDEX.650, TWETOLIN.E00 and TWETOSHD.E00. These files were created on a UNIX platform with ARC/INFO 6.1.2. Updated versions of INDEX.E00, CONTACT.E00, LINE.E00, DECO.E00 and BORDER.E00 files that included the newly defined HP650c items are also included.
Any hardcopies utilizing these data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey.
Item: Feature: P1,P2 Shorthand attributes BW Line pattern from CARTO.LIN CCA Line pattern or shade color from CCA.LIN or CCA.SHD CCB Shade color from CCB.SHD PATT Shade pattern from DOT.SHD HP Line pattern or shade color from TWETO.LIN or TWETO.SHD
Some vectors can have both a P1 and P2 code. Such as a fault that is also a contact.
Please see the file READ.2ND on the source disks or at <http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-92-0507/READ.2ND> for a listing of the geologic line values and for descriptions of the different formation polygon attributes.
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standard nor with the North American stratigraphic codes. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:500,000.