During 1926 about 270 miles were completed by state, in addition to considerable mileage of forest highways and county roads; large part of improvements were on primary routes; Oregon Trail, Yellowstone Trail, North and South highway, and Roosevelt highway.
Idaho making new strides in highway improvement
Highway Mag
Highway Magazine ; 18 , n 11 ; p 286-287
1927
2 pages
Aufsatz (Zeitschrift)
Englisch
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