East Creek, which drains the northeastern half of Unaweep Canyon, was
forced to change its course during the Pleistocene Epoch by another act
of piracy. After capture of the Gunnison River by the newly routed
Colorado River, East Creek joined the Gunnison by way of Cactus Park.
Then, a tributary of North East Creek headed southward and captured East
Creek, as shown in figure 34_D_.