Thompson stands as the primary settlement on this Winnebago County landscape, its town grid defined by streets like Harrison St and Lynn St. The surrounding agricultural terrain is heavily shaped by early twentieth-century water management, featuring substantial infrastructure like Drainage Ditch Number 24 and Drainage Ditch Number 39 which supplement the natural flow of Little Buffalo Cr and Buffalo Cr. A significant cultural and natural landmark is the Linden Township Cemetery Prairie, preserving a rare remnant of the original Iowa prairie alongside local burial grounds. To the southwest, the name Mount Valley appears as a distinct location, while Pike Run winds south from the Thompson area, illustrating the relationship between the prairie township's small-town life and the extensively engineered drainage network that supports North Iowa's farming economy.
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1954 · Mason City
USGS Topo · 1:250,000
1957 · Mason City
USGS Topo · 1:250,000
1958 · Mason City
USGS Topo · 1:250,000
1972 · Buffalo Center
USGS Topo · 1:24,000
1972 · Buffalo Center SW
USGS Topo · 1:24,000
1972 · Forest City
USGS Topo · 1:24,000
1972 · Buffalo Center NE
USGS Topo · 1:24,000
1972 · Hayfield
USGS Topo · 1:24,000
1972 · Crystal Lake
USGS Topo · 1:24,000
1972 · Vinje
USGS Topo · 1:24,000