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2010 Map of Johnstown

Name: 2010 Topographic Map of Johnstown
Creator: U.S. Geological Survey
Published: 2010
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2010

About this map

The Big Thompson River and Little Thompson River define the agricultural landscape of northern Colorado in this 2010 survey. An intricate network of irrigation systems, including the Hillsboro Ditch and Home Supply DITCH, sustains the land around the growing settlement of Johnstown. The map reveals the critical role of water storage in this region, documenting numerous family-named and municipal impoundments such as the Johnstown Reservoir, Isabel Myron Reservoir, and Parmalee Reservoir.

Smaller rural clusters and junctions like Elwell, Hardman, and Buda dot the plains, many situated along the section lines of the county road grid. For local historians, the Elwell Cemetery provides a specific point of genealogical interest. The landscape is also marked by the path of the I 25 Frontage Rd, showing the modern transportation corridor that connects these established agricultural communities to the larger regional hub.