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1972 Map of Lake Helena

Name: 1972 Topographic Map of Lake Helena
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

Lake Helena sits at the center of this Montana landscape, where the confluence of Tenmile Creek, Silver Creek, and Prickly Pear Creek forms a broad riparian basin. The early 1970s marked a period of significant water management in the valley, evidenced by the extensive Helena Valley Canal and the Helena Valley Regulating Reservoir near the Missouri River. These irrigation systems supported a growing rural community, linking the agricultural flats with the northern reaches of the Helena National Forest.

Local life is anchored by landmarks like the Masonic Home and educational hubs such as Mountain View Sch and Warren Sch. The map also captures the industrial footprint of the era, from a Gravel Pit near the Hauser Lake Dam to scattered Prospects and a Mine in the northern hills. The road network, including Lincoln Road East and York Road, traces the shift from traditional ranching toward modern residential clusters like the nearby Trailer Park and Community Center.