U.S. land management, bureau of Denver office deluged by mining claims. RMN S 5, 1979 p.4 All but 167, of U.S. BLM land in Colorado dropped from consideration as potential wilderness area. Post S 30, 1979 p.2 Rangeland review will affect grazing in the West. RMN D 10, 1979 p.5 Tentatively eliminated about 500,000 acres from wilderness, adding 815,000. RMN Ja 31, 1980 p.4,104