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1917 Map of Portneuf

Name: 1917 Topographic Map of Portneuf
Creator: U.S. Geological Survey
Published: 1948
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1948

About this map

The Chesterfield settlement stands as a focal point in this high-altitude landscape of southeastern Idaho, surrounded by the agricultural infrastructure of the early twentieth century. The management of water is central to the area's development, evidenced by the Portneuf Reservoir and the extensive Portneuf Valley Irrigation Co Feeder Canal. This network, along with the Land Ditch, supported a valley of rural homesteads and local institutions. Small educational hubs like Gooch School, Rigby School, and Kelly School are scattered across the Portneuf Valley, marking the community's growth.

Transport and boundaries define the southern and western reaches, where the Oregon Short Line railroad cuts through near the tiny station at Kimport. The map also captures the interface between public and sovereign lands, showing the eastern edge of the Fort Hall Indian Reservation and the mountainous terrain of the Cache National Forest. In the higher elevations to the east, landmarks like Tenmile Pass and Little Flat Canyon illustrate the transition from the irrigated valley floor to the high-country drainage of Sawmill Creek and the Blackfoot River.