Troy Mills occupies the center of this rural landscape, positioned at a notable bend where the local hydrology defines the settlement patterns. The boundary between Buchanan Co and Linn Co divides the northern agricultural plots from the southern reaches of the Cedar River watershed. This area is heavily marked by small local cemeteries that preserve the names of early settler families, such as Saint Patrick's Cem in the northeast and Circle Grove Cem farther west. The terrain is crisscrossed by a network of drainage systems including Honey Cr, W Otter Cr, and Dry Cr, which carve through the grid of gravel and paved roads. These waterways and the placement of Troy Mills Cem suggest a long-established community structure that remains anchored by the Wapsipinicon river valley despite the modernization of the surrounding road network like Co Rd W45.
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1888 · Shellsburg
USGS Topo · 1:62,500
1888 · Marion
USGS Topo · 1:62,500
1889 · Marion
USGS Topo · 1:62,500
1889 · Shellsburg
USGS Topo · 1:62,500
1899 · Shellsburg
USGS Topo · 1:62,500
1903 · Winthrop
USGS Topo · 1:125,000
1959 · Dubuque
USGS Topo · 1:250,000
1961 · Dubuque
USGS Topo · 1:250,000
1962 · Dubuque
USGS Topo · 1:250,000
1968 · Central City
USGS Topo · 1:24,000