NOTE: This file contains transcribers notes to accompany the original README file (nc.doc).

This data is a conversion product and should not serve as the primary source for the complete geologic information for this area. To obtain complete information, please go to https://pubs.usgs.gov/of/1993/ofr-93-0310/.  This information may be found as referenced below:

Publisher:	U.S. Geological Survey	
Title:		Geologic map of the New Castle quadrangle, Garfield County, Colorado
Author:		Green, M.W., Fairer, G.M., and Shroba, R.R.
Original NGMDB identifier: 12723


Purpose: This file set is intended to make outdated Arc/INFO e00 files available as open-format shapefiles. No modification to files has been made. Projection was not changed. 

Process: e00 files were imported to coverage, then converted to shapefile using the ArcMap commands “Import from e00 (conversion)” and “Feature Class to Shapefile” respectively. Related tables were preserved by opening in ArcMap and exporting to txt.   

E00 files convert to:
	nc8.e00 (principal line and polygon geologic map coverage) =
		nc8_arc.shp 
		nc8_poly.shp
	ncl.e00 (loess polygon data set) = 
		ncl_arc.shp
		ncl_poly.shp
	ncst.e00 (structure data set) = 
		ncst_anno.shp
		ncst_arc.shp
		ncst_point.shp
		ncst.lut2x.txt
		ncst.lut.txt
	ncstr1.e00 (structure data set) = 
		ncst1_anno.shp
		ncst1_arc.shp
		ncst1_poly.shp

Original files included:
	nc.doc = text
	nc.text = code key


Modified: 25 August, 2023 by Karen Morgan, USGS contractor 



