From Edward Curtis’ Field Notes:

“A wonderfully scenic spot is this in northeastern Arizona, in the heart of Navaho country – one of their strongholds, in fact. Cañon de Chelly exhibits evidence of having been occupied by a considerable number of people in former times, as in every niche at every side are seen the cliff-perched ruins of former villages” – Edward Curtis

The North American Indian, Volume 1, The Apache. The Jicarillas. The Navaho, 1907. Portfolio plate no. 28.