1971 Map of Clay Knoll

About this map

The Little Drum Mountains rise in the northwestern corner of this 1971 survey, providing a sharp contrast to the broad Depression and drainage basins that define the surrounding Millard County landscape. Water management is the primary human imprint on this arid terrain, evidenced by a network of catchments including Clay Knoll Reservoir, North Clay Knoll Reservoir, and the West Marshall Tract Reservoir. These features, alongside the Chalk Knolls Well and Little Drum Spring, speak to the critical infrastructure required for ranching or land use in the high desert.