Map of Blair County, Pennsylvania : from special surveys /
General-content county map also showing buildings in rural areas, householders' names, and forested areas; real-property tracts, lot numbers, and building coverage also are shown in all the town/village insets ... More
Map of Blair County, Pennsylvania : from special surveys
Public domain image of the vintage map from Norman B. Leventhal Map Center, free to use, no copyright restrictions image. The Norman B. Leventhal Map & Education Center at the Boston Public Library is a special... More
Tyrone, Blair County, Pennsylvania 1895 /
Perspective map not drawn to scale. Bird's-eye-view. LC Panoramic maps (2nd ed.), 864.1 Available also through the Library of Congress Web site as a raster image. Indexed for points of interest. Vault AACR2: 10... More
Birmingham Bridge, Spanning Little Juniata River at local road South o...
Significance: This single span pin-connected Pratt through-truss is unique for a Pratt truss in that the portals contain hip verticals that carry compressive stresses (hip verticals for the standard Pratt truss... More
Birmingham Bridge, Spanning Little Juniata River at local road South o...
Significance: This single span pin-connected Pratt through-truss is unique for a Pratt truss in that the portals contain hip verticals that carry compressive stresses (hip verticals for the standard Pratt truss... More
Birmingham Bridge, Spanning Little Juniata River at local road South o...
Significance: This single span pin-connected Pratt through-truss is unique for a Pratt truss in that the portals contain hip verticals that carry compressive stresses (hip verticals for the standard Pratt truss... More
Birmingham Bridge, Spanning Little Juniata River at local road South o...
Significance: This single span pin-connected Pratt through-truss is unique for a Pratt truss in that the portals contain hip verticals that carry compressive stresses (hip verticals for the standard Pratt truss... More
Birmingham Bridge, Spanning Little Juniata River at local road South o...
Significance: This single span pin-connected Pratt through-truss is unique for a Pratt truss in that the portals contain hip verticals that carry compressive stresses (hip verticals for the standard Pratt truss... More
Birmingham Bridge, Spanning Little Juniata River at local road South o...
Significance: This single span pin-connected Pratt through-truss is unique for a Pratt truss in that the portals contain hip verticals that carry compressive stresses (hip verticals for the standard Pratt truss... More