Lotts Cr and its tributaries define the rural landscape of this Humboldt County region, where the natural watercourses have been heavily modified for agricultural development. The persistence of the township-and-range survey system is evident in the precise grid of secondary roads such as 130th St and 80th Ave, which partition the fertile plains into predictable squares. To manage the prairie hydrology, extensive civil engineering projects like Ditch Number 79 and Drainage Ditch Number 8 were established to channel water away from the productive farmland. These man-made alterations exist alongside the meandering paths of Trulner Cr and Hine Cr, illustrating the transition from a wild prairie to a highly structured industrial agricultural environment during the early 21st century.
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1954 · Fairmont
USGS Topo · 1:250,000
1954 · Fort Dodge
USGS Topo · 1:250,000
1957 · Fort Dodge
USGS Topo · 1:250,000
1958 · Fort Dodge
USGS Topo · 1:250,000
1958 · Fairmont
USGS Topo · 1:250,000
1972 · Algona
USGS Topo · 1:24,000
1972 · St. Joseph
USGS Topo · 1:24,000
1972 · Livermore
USGS Topo · 1:24,000
1980 · Hobarton
USGS Topo · 1:24,000
1980 · West Bend
USGS Topo · 1:24,000