2014 Map of Rocky Knoll

About this map

The Sevier River winds through this arid section of Millard County, tracing a complex hydrological path through the Sevier Desert. The landscape is defined by the remnants of prehistoric watercourses, most notably the Old Channel Sevier River, and the presence of numerous catchments like Hardpan Reservoir and Tamarack Reservoir. To the south, the terrain descends toward the extensive basin of Sevier Lake Reservoir Number 4, while the namesake Rocky Knoll and nearby Rocky Knoll Spring provide localized relief in an otherwise low-lying alkali flat environment. Infrastructure is sparse but modern, represented by the Energy Corridor Rd and Highway 257 Rd, which cut across traditional township lines. This 2014 survey documents the area's continued reliance on managed water features, such as Clay Knoll Reservoir and Bitterweed Lake, in a region characterized by ephemeral washes and seasonal drainage patterns.