Mepụta ụdị okwu a dị mgbagwoju anya Echo Canyon Dam, nke na-eme ka Echo Canyon Reservoir, wuru na 1969 - 70.
N'ezie, ụdị okwu dị mgbagwoju anya nke ahịrịokwu ahụ bụ "E wuru Echo Canyon Dam na 1969 - 70, ọ bụkwa mmiri mgbochi mmiri kachasị dị na Meadow Valley Wash. "