1979 Map of Roseworth NE

About this map

Salmon Falls Creek winds through the high desert of Twin Falls County, carving a deep canyon that dominates this landscape. The 1979 survey captures the rugged hydrology of the region, where Deep Creek and Cedar Creek feed into the primary gorge. A distinct human imprint is visible at Lilly Grade, a road that descends sharply into the canyon near Mile 26. Unlike the structured grid of the agricultural plains to the north, the terrain near Antelope Pocket remains largely open, defined by elevation changes and remote water infrastructure. Researchers will find numerous water tanks scattered across the high ground, illustrating the essential cattle-grazing economy of this Idaho ranching country. The placement of these markers alongside specific river milestones like Mile 30 and Mile 34 provides a precise spatial record of how the canyon was navigated and utilized in the late twentieth century.