The BLM quadrant maps are scaled at 1:100,000, and cover an area of about 30 x 50 miles. This area has extensive BLM lands for you to explore and enjoy. Travel on the Dinosaur Diamond National Scenic Byway. Map is useful for OHV/4WD use, and Colorado Hunting Units 21,22,30,31, and 32. Differentiates between public and private land, and also among the various agencies who manage the public lands. 2021