Final unioned polygons for the Deserado coal area, northwest Colorado (des*fing)

These are shape files of final unioned polygon coverages
used to calculate coal resources of the B and D coal
zones, Lower White River coal field, Deserado assessment
area, northwestern Colorado. Desbfing was used for the B
coal zone; Desdfing was used for the D coal zone. Polygons
that make up the final unioned polygons include counties,
7.5' quadrangles, townships, surface and coal ownership,
lease area, overburden, and coal thickness categories. The
final coverages were clipped to the resource areas for each
coal zone, which are described in the metadata files for the
des_bnd coverages.