Location of the National Petroleum Reserve, Alaska, (NPRA) showing the grid of 20 Regionally Compressed Seismic (RCS) lines. Each RCS line is composed of several individual seismic lines. The RCS grid is to be used as a template for the seismic data component of the proposed whole-Earth data sets from the NPRA.
This USGS Fact Sheet can be found at <URL:http://energy.usgs.gov/factsheets/NERSL/map.html>
Maintained by L. Friedrich Last updated 23-Sept-1997