The Thompson River meanders through the heart of this Decatur County landscape, carving a complex network of valleys and ridges around the town of Grand River. This 2018 survey reveals a rural territory defined by section-line roads and numerous family and pioneer burial sites, suggesting a deep-rooted history of settlement along the river's path. Researchers will find a high density of small cemeteries scattered across the townships, from O'Grady Cem in the northwest to Munyon Cem on the eastern hills. The infrastructure is characterized by a grid of local routes like Co Rd R15 and Co Rd J20, which bridge the drainage basins of Elk Cr and Short Cr. The presence of sites such as Old Funk Cem and Oak Hill Cem south of the main river channel indicates the enduring footprint of early agricultural communities within this well-watered Iowa terrain.
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This is the sole edition of this map. No revisions or reprints were ever made.
1945 · Mount Ayr
USGS Topo · 1:62,500
1945 · Lamoni
USGS Topo · 1:62,500
1947 · Lamoni
USGS Topo · 1:62,500
1947 · Mount Ayr
USGS Topo · 1:62,500
1954 · Centerville
USGS Topo · 1:250,000
1955 · Nebraska City
USGS Topo · 1:250,000
1957 · Nebraska City
USGS Topo · 1:250,000
1957 · Centerville
USGS Topo · 1:250,000
1958 · Centerville
USGS Topo · 1:250,000
1958 · Nebraska City
USGS Topo · 1:250,000