Final unioned files for Yampa coal field resource calculations, northwestern Colorado (yam*fing)
These are shapefiles and final unioned polygon coverages
used to calculate coal resources of the A through D coal
zones, Yampa coal field, northwestern Colorado. Yamafing was
used for the A coal zone, yambfing was used for the B coal
zone, etc. Polygons that make up the final unioned polygons
include counties, 7.5' …