DIGITAL DATABASE FOR THE QUEBEC QUADRANGLE NL-19, UNITED STATES AND CANADA,
OF THE QUATERNARY GEOLOGIC MAP OF THE UNITED STATES (MISCELLANEOUS
INVESTIGATIONS SERIES I-1420)

Files available through this site represent the digital component of the
        Quebec Quadrangle of the Quaternary Geologic Atlas of the U.S., 
	Miscellaneous Investigations Series, Map I-1420 (NL-19).  The files
	contain .e00 files, shapefiles, and pdf files of the map's illustrations
	and correlation diagram, and a pdf file of the map unit descriptions and
	sources of information.  An ARC/INFO aml, keyfile, shadeset, lineset,
	and markerset are included to produce the plot of the data.  


The following ARC/INFO export coverages are included in quebecGIS.zip:

	>geo_net--map unit polygons and open water; lines that are geologic
		    contacts and shorelines.
          
	>gla_lin--a line coverage indicating the limits of glacial advance,
		    eskers, dispersal fans, minor moraines, and washboard moraines

	>gla_pnt--a point coverage indicating locations of dune fields, cirques,
		    drumlins, direction of ice movement, and ice-molded landforms

	>hydr_lin--a line coverage indicating locations of streams and water bodies

	>topo_lin--a line coverage containing contour lines

	>bnd_lin--a line coverage with a neatline and State and international boundary lines

	>bnd_net--a polygon coverage containing county and administrative areas

	>rd_lin--a line coverage of State and federal highways in the U.S.A.

      >card_lin--a line coverage of highways in Canada

	>rr_lin--a line coverage of railroads

	>grid_lin--a line coverage of 1 degree projection lines

      >plotfile.pdf--a plot of the digital files containing map units,
            linear and point glacial features, hydrology, topography,
            and a list of map symbols


Included in quebecIMG.zip: 

	I-1420_nl-19_map.pdf--A scan of the original published paper map

	plotfile.pdf--A plot of the digital files containing map units,
            linear and point glacial features, hydrology,
            topography, and list of map symbols

	quebec.txt--an ASCII file of FGDC formal metadata

	I-1420_nl-19_correlation.pdf--A scan of the chart showing
            correlation of map units

	I-1420_nl-19_index.pdf--An index map showing location of
      	Quaternary Geologic Atlas of the U.S. quadrangles

	I-1420_nl-19_responsibility.pdf--A scan of the illustration of
            compilation responsibilities shown on the paper map

	I-1420_nl-19_textonly.pdf--Text description of map units, figure
	      captions, and sources of information used in preparing the
            original map

Also available in the file quebecAV.zip are the ArcView shape files of the
            Arc/Info coverages

  Charles A. Bush
  U.S. Geological Survey                                                     
  (303) 236-4723
  cbush@usgs.gov