Elevations range from about 6,600 feet to 13,153 feet, and peaks exceeding 12,000 feet are scattered throughout the Wilderness. Large portions are rough and barren, and vegetation is sparse. Approximately half the area is forested. With fewer lakes than the Wind River Mountains, the fishing is less active here, but large streams do support trout. Nonetheless, the wildlife population and diversity is extraordinary.
Hunters come for elk, moose, bighorn sheep, mule deer, and black bears.
Grizzly bears are numerous and on the increase. Travelers should take appropriate precautions, as these are no teddy bears. Snow may fall any day of the year in the higher country, and summer temperatures rarely rise above 80 degrees Fahrenheit. Be prepared for rain showers in late summer.