where the Dominguez-Escalante party had stayed October 26-November 1,1776. They did not know that the Spaniards had already named the Echo Cliffs, La Cuesta de las Animas (see Dominguez-Escalante expedition, Chapter I, this work). For additional information about the Powell Survey, see Lee's Ferry (Historical site 19). Bibliographical Notes Major Powell, George Y. Bradley, and John C. Sumner, all kept daily accounts of the 1869 expedition. These have been brought together under one cover and edited by W. C. Darrah (1947). Bradley's diary is the fullest and generally is the most useful. Powell's journal July 2-August 28, 1869, consists of brief notes mostly of geological matter. Sumner's journal often provides data not found in the other t...