
Unionville dominates the northwestern portion of this 1974 orthophotoquad, showing the town's footprint as it transitioned into the mid-1970s. This specific type of aerial-derived map provides a high-contrast look at the Missouri landscape, emphasizing the intricate patchwork of agricultural fields and the deep, wooded drainage patterns that carve through the northern Missouri terrain. While many traditional topographic maps use symbols for vegetation, this photographic record reveals the exact density of woodlots and the precise layout of farmsteads and rural road networks surrounding the settlement. The contrast between the organized grid of the town and the irregular, erosion-shaped creek valleys provides a clear view of how local topography dictated the limits of development in Putnam County during this era.
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This is the sole edition of this map. No revisions or reprints were ever made.
1912 · Green City
USGS Topo · 1:62,500
1914 · Green City
USGS Topo · 1:62,500
1939 · Centerville
USGS Topo · 1:62,500
1941 · Centerville
USGS Topo · 1:62,500
1942 · Seymour
USGS Topo · 1:62,500
1944 · Seymour
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
1964 · Unionville West
USGS Topo · 1:24,000