
The town of Lyons sits at the confluence of the North St Vrain Creek and South St Vrain Creek, serving as a gateway to the foothills of the Roosevelt National Forest. This late 1960s landscape, updated in the late 1970s, reveals a complex network of water management and resource extraction. Significant infrastructure includes the Button Rock Reservoir, the Longmont Reservoir, and the Longmont Powerplant, alongside an intricate system of irrigation channels such as the South Ledge Ditch and Toll Gate Ditch. The terrain is marked by numerous quarries and mines, particularly around Steamboat Mountain and Indian Lookout Mountain, illustrating the local industry's reliance on the area's geology. Evidence of earlier settlement and social life appears through the Altona Grange, the local cemetery, and several picnic grounds located near Little Narrows.
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6 editions found
1902 · Boulder
USGS Topo · 1:62,500
1904 · Niwot
USGS Topo · 1:62,500
1904 · Boulder
USGS Topo · 1:62,500
1905 · Mount Olympus
USGS Topo · 1:62,500
1906 · Loveland
USGS Topo · 1:62,500
1907 · Mount Olympus
USGS Topo · 1:62,500
1908 · Loveland
USGS Topo · 1:62,500
1950 · Hygiene
USGS Topo · 1:24,000
1950 · Niwot
USGS Topo · 1:24,000
1951 · Niwot
USGS Topo · 1:24,000