United States. Forest Service1 map : color; 25 x 39 cmScale 1:11,875,000 (W 129°--W 65°/N 51°--N 25°). ; Title devised by cataloger.; 'Base by U.S. Geological Survey.'; Includes insets of Alaska and Puerto Rico.9980806271702441ark:/81985/n25h7dt8bGeological SurveyPublicNational parks and reserves[National forests and national parks of the United States]Maps1948Northwestern University