Bighorn Mountains to Yellowstone National Park 371.A. Aug. 9, 1933. Yesterday this morning we drove through the Bighorn Mountains enroute from Sheridan to East Yellowstone. Their extensive meadows are even where brown with drought, confounded with the wingless real grasshoppers, and heavily grazed by cattle or sheep. Grass & browse is abundant but beginning to show unmistakable signs of over-grazing. The grass & weed stages have appeared, and recent erosion gulley's are showing on exposed hill sides. Willows show much breakage & browsing and present a shabby appearance. Yarrow & Chrysanthemums are widespread. This region because of its open, rolling character and extensive meadows, willow thickets, browse and water, is one of the most favorable game or wild life areas we have ever seen. It is no wonder the trappers found it so. The bighorns, however, for which the range was named, are gone. Purglies are gone. Some deer & elk reported. The country west of the range is arid badlands.