Original document is: Environmental assessment for the proposed special regulations designating snowmobile routes in Crater Lake National Park, Oregon; ([Seattle, Wash.]: [National Park Service, Pacific Northwest Regional Office], 1975); [18 p.]; 28 cm.
Date Original
1975
Date Digitized
2010-04-01
Date Available
2010-05-10
Original Publisher
[National Park Service, Pacific Northwest Regional Office]