
Erie and Lafayette anchor this 1960s landscape, which reveals a transition from traditional agriculture and mining toward modern infrastructure. The terrain is crisscrossed by an extensive network of irrigation ditches, including the Liggett Ditch and Cottonwood Ditch, supporting the region's farms and reservoirs like Panama Res No 1. Evidence of the area's coal-producing history is clearly visible through landmarks such as the Columbine Mine, Hayward Mine, and the Erie Mine northeast of town.
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6 editions found
1890 · East Denver
USGS Topo · 1:125,000
1899 · West Denver
USGS Topo · 1:125,000
1902 · Greeley
USGS Topo · 1:125,000
1904 · Niwot
USGS Topo · 1:62,500
1940 · Eastlake
USGS Topo · 1:31,680
1940 · Lafayette
USGS Topo · 1:31,680
1942 · Louisville
USGS Topo · 1:31,680
1944 · Lafayette
USGS Topo · 1:31,680
1944 · Eastlake
USGS Topo · 1:31,680
1949 · Gowanda
USGS Topo · 1:24,000