Added: 1958 aerial photo coverage for Blair County, Pennsylvania! Explore Altoona and spot the iconic Horseshoe Curve—an engineering marvel of American railroading—as it looked from above in the late 1950s.
Added: 1958 aerial photo coverage for Blair County, Pennsylvania! Explore Altoona and spot the iconic Horseshoe Curve—an engineering marvel of American railroading—as it looked from above in the late 1950s.