Note 1 — THE RUINS OF THE COLORADO VALLEY.
Reading edition
In studying the ruins of the Mancos and neighboring cañons I have made constant use of the reports of explorations by Mr. W. H. Jackson and Mr. W. H. Holmes in Bulletins of U. S. Geolog. and Geograph. Survey, Second Series, No. 1, and Annual Report of the same survey for 1876.