Draft environmental impact statement for Draft environmental impact statement for the interagency bison management plan for the state of Montana and Yellowstone National Park draftenvironment09unit Year: 1998 THE ALTERNATIVES survive the winter than those who do not use them. In other words, they are made to pay what some believe is 'the true cost' of travel. Some bison also could be accessing areas of the park near its borders because of groomed trails and plowed roads. Bison herd along road in Yellowstone National Park in the winter. Alternative 2 is the only alternative to propose rout
Draft environmental impact statement for Draft environmental impact statement for the interagency bison management plan for the state of Montana and Yellowstone National Park draftenvironment09unit Year: 1998 THE ALTERNATIVES survive the winter than those who do not use them. In other words, they are made to pay what some believe is 'the true cost' of travel. Some bison also could be accessing areas of the park near its borders because of groomed trails and plowed roads. Bison herd along road in Yellowstone National Park in the winter. Alternative 2 is the only alternative to propose routine changes in some segments of park roads to control distribution, although other alter- natives include research on the use of roads and potential barriers to bison travel (alternative 3), and/or plowing to access capture facilities (alternatives 5 and 6). Some changes in road grooming might occur in phase 1 of this alternative as well help control distribution (see discussion on bison distribution in the 'Background' chapter of the 'Purpose of and Need for Action'). Roads left ungroomed could include sections from Madison to West Yellowstone, Madison to Norris, and Madison to the Fountain Freight Road (see Alternative 2 map), which would isolate herds inside the park from boundary areas, and increase natural winter kill. The agencies would conduct research to determine the effectiveness of those closures in preventing bison from leaving the park during winter, and to evaluate the contribution of other groomed roads to bison movements out of the park. Based on those investigations, additional changes and NEPA compliance to further inhibit bison from leaving the park or to maintain bison population size are possible. In addition to measures to ensure separation of cattle and bison, state animal health authorities would encourage livestock owners throughout the area whose cattle might come in contact with bison to vaccinate female calves (4-12 months old) against brucellosis wi
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