The story of how the park got its name is quite interesting. Cowboys would herd wild mustangs onto this promontory overlooking the Colorado River to capture them for sale or for their own use. Apparently some were left here and died of thirst. The water in the background is not the Colorado River but is part of the Cane Creek potash mine. Water from the Colorado River is pumped into the underground mine where it dissolves the potash. The mineral-laden water is brought to the surface and pumped into shallow evaporation ponds. As the water evaporates, potash and salt crystals are left behind for harvesting.