DS-777 Spatial Location of Stream Elevations for the Northern High Plains Groundwater-Flow Model in Parts of Colorado, Kansas, Nebraska, South Dakota, and Wyoming

This data set is one of many developed in support of The High Plains Groundwater Availability Project
and the USGS Data Series Report: Geodatabase Compilation of Hydrogeologic, Remote Sensing, and
Water-Budget-Component data for the High Plains aquifer, 2011 (DS 777).

This dataset contains point vector data from the National Hydrography Dataset Plus (NHD+) 1:100,000
stream polyline data converted into points and attributed with elevation values in feet above sea level.
Streams were initially included if they had a mean estimated base flow of more than 10 cubic feet per
second (based on streamflow data from long-term streamflow-gaging stations operated by the USGS
or the Nebraska Department of Natural Resources). The stream network then was expanded to include
selected streams that were deemed hydrogeologically important but had a mean estimated base flow
of less than 10 cubic feet per second.