The BLM quadrant maps are scaled at 1:100,000, and cover an area of about 30 x 50 miles. As you travel through this area, enjoy the vistas on the Comanche National Grassland. Colorado Hunting Units 136, 137, 140,141, 142, 143, 144, and 147. Ownership status is denoted by color, and roads, lakes, streams, and other topographical features are marked on these maps. Currently only the version with mineral management and surface management is available. 2006