Chapter 3 Affected Environment
Chapter 3 – Affected Environment Chapter 3 Affected Environment In this Chapter: • Existing natural environment • Existing human environment • Protected resources This chapter describes the existing environment that may be affected by the alternatives. A brief regional description is given here to give the reader a better understanding of the information in this chapter. The project area is in the uppermost reaches of the Columbia River Basin, within the Snake River watershed. It is part of the Greater Yellowstone Ecosystem, which is the largest remaining block of relatively undeveloped land in the contiguous United States. This ecosystem is centered around Yellowstone and Grand Teton National Parks and includes the national forests, wilderness areas, wildlife refuges, and other federal, state, tribal, and private lands that surround these parks. The landscape is scenic. Dominant features include mountain ranges over 3,660 m (12,000 feet) high, alpine valleys, rivers, broad flat plateaus, picturesque farmlands, and the special features of the national parks. The region is known for its variety of wildlife, unequaled elsewhere in the continental United States. Species present in large numbers include bighorn sheep, pronghorn antelope, moose, mule deer, elk, and black bear. Wolverines, grizzly bears, and reintroduced wolves are present as well. This region attracts over 5 million tourists and recreationists per year (Wyoming Department of Commerce, 1995). Visitors and local residents enjoy sightseeing, hiking, backcountry skiing, snowmobiling, camping, backpacking, horseback riding, mountain biking, snowboarding, parasailing, hunting and fishing. Because of the concentration of highly visible wildlife species in the region, wildlife-related recreation is a key element of the region’s economy and character.
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