1957 Map of Indian Creek Reservoir

About this map

The Route of Oregon Trail traverses the northern ridge of this Ada County landscape, passing through Bonneville Point as it descends toward the river valleys. This 1957 survey, with updates recorded in 1971, illustrates a high desert corridor dominated by drainage systems like Fivemile Creek and Upper Blacks Creek. The infrastructure of the mid-20th century is superimposed over these historic emigrant paths, notably the Union Pacific (Oregon Short Line) and a series of industrial pipelines and ditches that cut diagonally across the terrain.