2023 Map of Clay Knoll

About this map

The Old River Bed dominates the eastern edge of this Millard County landscape, marking a prominent ancient watercourse through the high desert. This 2023 survey illustrates a region defined by arid-land water management, centered around the eponymous Clay Knoll. A network of catchment points, including the West Marshall Tract Reservoir and North Clay Knoll Reservoir, suggests the importance of livestock grazing and local irrigation in this basin. To the west, the terrain rises into the Little Drum Mountains and the Chalk Knolls, where Little Drum Spring provides a rare natural water source. The presence of Old 6 & 50 and the Hinckley Trail Reservoir reflects the historical transit routes and cattle-driving paths that once crossed this part of the Utah desert before modern highway realignments.