This document presents and analyzes seven alternatives for winter use management in Yellowstone National Park (YNP), Grand Teton National Park (GTNP), and the John D. Rockefeller, Jr., Memorial Parkway (the Parkway). YNP, encompassing 2.22 million acres, and GTNP, comprising 310,000 acres, form the core of the Greater Yellowstone Ecosystem, described as the last large, nearly intact ecosystem in the northern temperate zone. The approved plan will serve as a management plan for the three national parks.
United States, Department of the Interior, National Forest Service, "Winter Use Plans Final Environmental Impact Statement Summary for the Yellowstone and Grand Teton National Parks and John D. Rockefeller, Jr., Memorial Parkway" (2000). Final Environmental Impact Statements (WY). Paper 13.