2020 Map of Darlington

About this map

Big Lost River Valley serves as a central artery for agriculture and transport in this Custer County corridor, as shown in this 2020 USGS survey. The settlements of Leslie and Darlington anchor the valley floor, where an intricate network of irrigation systems—including the Blaine Canal, McGowan Ditch, and Three in One Ditch—diverts water from the Big Lost River to support local ranching. The landscape is defined by the transition from these fertile bottoms to the high terrain of the White Knob Mountains and Challis National Forest. Local history is preserved at the Darlington Cem, while unusual geological features like the Darlington Sinks and the curiously named Appendicitis Hill provide distinctive landmarks. The map also delineates the boundary between Custer and Butte counties near where Antelope Cr joins the valley system.