
Logan Valley serves as a primary corridor for settlement and transit, where the Little Juniata River flows alongside communities like Bellwood and Roots. The landscape is sharply defined by the massive ridge of Brush Mountain, which separates the more industrialized Altoona outskirts from the agricultural expanse of Sinking Valley. This 2023 survey provides a clear look at how residential development in Greenwood and Pinecroft has expanded against the steep western slopes of the Allegheny Mountains.
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This is the sole edition of this map. No revisions or reprints were ever made.
1901 · Huntingdon
USGS Topo · 1:62,500
1902 · Hollidaysburg
USGS Topo · 1:62,500
1903 · Hollidaysburg
USGS Topo · 1:62,500
1904 · Huntingdon
USGS Topo · 1:62,500
1920 · Altoona
USGS Topo · 1:62,500
1922 · Altoona
USGS Topo · 1:62,500
1923 · Tyrone
USGS Topo · 1:62,500
1929 · Tyrone
USGS Topo · 1:48,000
1933 · Tyrone
USGS Topo · 1:62,500
1946 · Tyrone
USGS Topo · 1:62,500