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acres activities appropriate basic Black Bay area boat launching Boundary Waters Canoe BWCA camping campsites canoe route Committee on Interior Crane Lake Area cross-country skiing development plan donated Duluth ecosystem survey environmental impact establishment float plane Forest Service glaciated Grand Portage hereinafter hiking historical improved property Insular Affairs Interior and Insular International Falls interpretive facility Interpretive Prospectus interpretive themes islands Kabetogama Peninsula Kettle Falls lake country lands and waters legislation located Lost Bay Louis County major visitor Management of Voyageurs management plan Namakan Lake National Park Service NATIONAL PARKS—VOYAGEURS natural environment noncommercial residential owner Park Access park area park boundaries Park enabling act park's pit-toilets political subdivisions primary developed areas primitive Proposed Voyageurs National purposes Rainy Lake Saginaw Bay shuttle boat snowmobiling snowshoeing Sullivan Bay area Superior National Forest United University of Minnesota vegetation visitor facility Voyageurs National Park Waters Canoe Area Wilderness Wilderness Act winter