2023 Map of Bobby Canyon South

About this map

The Book Cliffs dominate this eastern Utah landscape, forming a dramatic escarpment that separates high plateaus from the lower Gunnison Valley. This 2023 survey illustrates an intricate drainage system carved into the Mancos Shale and sandstone layers, characterized by deeply incised features like Tusher Canyon and Horse Canyon. The map reveals a network of branching corridors, including the Left Hand Tusher Canyon and Right Hand Tusher Canyon, which define the local topography. Evidence of vital water sources in this arid environment is found at Cottonwood Spring and Cow Spring, while elevated plateaus such as Tusher Bench and Coal Canyon Bench provide distinct landmarks between the canyons. To the south, Browns Wash collects the seasonal runoff from these steep slopes, illustrating the fundamental relationship between geologic erosion and the regional watershed.