The settlement of Pure Air sits atop the high ground of the Missouri hills, serving as a central point in this rural landscape divided by the Sullivan Co and Adair Co boundary. The topography is defined by an intricate network of drainage, where Little Mussel Creek, Billy Creek, and Walnut Creek carve deep valleys into the terrain. This drainage pattern dictates the historical placement of roads and trails, which often follow the ridgelines or traverse the narrow creek bottoms.
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This is the sole edition of this map. No revisions or reprints were ever made.
1911 · Queen City
USGS Topo · 1:62,500
1912 · Green City
USGS Topo · 1:62,500
1913 · Queen City
USGS Topo · 1:62,500
1914 · Green City
USGS Topo · 1:62,500
1938 · Kirksville
USGS Topo · 1:62,500
1940 · Kirksville
USGS Topo · 1:62,500
1954 · Centerville
USGS Topo · 1:250,000
1957 · Centerville
USGS Topo · 1:250,000
1958 · Centerville
USGS Topo · 1:250,000
1963 · Pure Air
USGS Topo · 1:24,000