2015 Map of Onion Springs

About this map

Onion Springs serves as a focal point for this section of Sublette County, where water management is central to the high plains landscape. The western drainage systems are defined by the winding paths of Onion Cr and Horse Cr, which give way to significant water storage features like Elaines Detention Reservoir and Jewett Red Flat Reservoir. These man-made structures, along with Coyote Reservoir near Antelope Draw, underscore the importance of water catchment for local livestock and land use. The terrain is marked by deep natural troughs such as Brodie Draw and a complex network of seasonal flows including Killpecker Cr and Muddy Cr. Navigation through this territory is maintained by the primary arteries of Ryegrass Co Rd and Cottonwood Ryegrass Rd, which link the various drainages and basins.