Roads in the Chugach National Forest. Digitized primarily from mylar overlays of mylar USGS orthophoto quads using ARC/INFO. Data available from the United States Department of...

Alaska Railroad track location in southcentral Alaska. About half the data was collected with GPS and post processed. Where there were gaps in the GPS data, the arcs were...

This coverage currently consists of the powerlines digitized from mylar overlays of 1:31,680 orthophoto quads in ARC/INFO. One 17(b) easement on lands that have been conveyed to...