United States touring map : showing 250,000 miles of principal traveled highways including National Park-to-park highways ...
Bordered by texts describing the organization and work of the Oregon Trail Memorial Association, Inc.; Caption title: Good roads everwhere--four fold system of highways.; Shows National Park-to-Park highways, Associated Tours highways, main traveled highways and Oregon Trail National Road highlighted in blue.
86 x 127 centimeters, on sheet 92 x 142 centimeters
Scale approximately 1:3,750,00
General Map Collection
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