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1957 Map of Lyons

Name: 1957 Topographic Map of Lyons
Creator: U.S. Geological Survey
Published: 1959
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1959

About this map

Lyons serves as the focal point of this 1950s survey, situated where the North St Vrain and South St Vrain forks converge. The town's industrial character is defined by numerous quarries etched into the slopes of Steamboat Mountain and Indian Lookout Mountain, reflecting a landscape defined by stone extraction. To the south, the smaller settlement of Altona is marked by the Altona Grange, serving as a landmark near the intersection of Lefthand Creek and the Toll Gate Ditch.

Water management is central to the area's development, evidenced by a network of irrigation systems including the South Ledge Ditch and Table Mountain Ditch. The western portion of the map transitions into the Roosevelt National Forest, where steep drainages like Deadman Gulch and Plumely Canyon cut through high points such as Fairview Peak and Coffintop Mountain. These features illustrate the transition from the plains into the high ridges and canyons of the Front Range.