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2019 Map of Johnstown

Name: 2019 Topographic Map of Johnstown
Creator: U.S. Geological Survey
Published: 2019
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2019

About this map

The Big Thompson River and its southern counterpart, the Little Thompson River, define the hydrology of this Weld and Larimer County landscape, which is heavily shaped by agricultural water management. An intricate network of irrigation systems including the Hillsboro Ditch, Home Supply Ditch, and Farmers Extension Canal crisscrosses the terrain, feeding numerous named water bodies such as Marshall Reservoir Number 2 and Isabel Myron Reservoir. These features illustrate the century-long effort to divert river water to the high plains for cultivation.

Concentrated development appears around Johnstown, where the Johnstown Reservoir and Johnstown Cem are central landmarks. Outlying settlements like Buda, Elwell, and Pulliam are situated along the section-line road grid, while the western edge of the map captures the expansion of Berthoud and the southern reaches of Loveland. Modern residential growth is evidenced by newer developments like Settler Ridge Dr and Serenity Ridge Pkwy near Mead.