
Longmont serves as the focal point of this mid-century landscape, showing a structured grid of residential blocks and public parks like Roosevelt Park and Sunset Park. The surrounding environment is defined by an intricate network of irrigation systems, including the Oligarchy Ditch and Rough and Ready Ditch, which redirect water from St Vrain Creek and Boulder Creek to numerous storage bodies such as Calkins Lake (Union Reservoir). These waterworks illustrate the agricultural engineering required to sustain the communities of Highland, Morey, and Liberty at the edge of the plains.
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1902 · Greeley
USGS Topo · 1:125,000
1904 · Niwot
USGS Topo · 1:62,500
1906 · Loveland
USGS Topo · 1:62,500
1908 · Loveland
USGS Topo · 1:62,500
1949 · Gowanda
USGS Topo · 1:24,000
1950 · Frederick
USGS Topo · 1:24,000
1950 · Gowanda
USGS Topo · 1:24,000
1950 · Hygiene
USGS Topo · 1:24,000
1950 · Erie
USGS Topo · 1:24,000
1950 · Niwot
USGS Topo · 1:24,000