Petroglyphs are reported by Lieut. Theodore Mosher, Twenty-second Infantry, U. S. Army, to have been discovered by Lieut. Casey’s party in December, 1887, on the Chiulee (or Chilalí) creek, 30 or 40 miles from its confluence with San Juan river, Arizona. A photograph made by the officer in charge of the party shows the characters to have been outlined by pecking, the designs resembling the Shoshonean type of pictographs, and those in Owens valley, California, a description of which is given below.

A figure, consisting of two concentric circles with a straight line running out from the larger circle, occurs, among other carvings, on one of the many sculptured bowlders seen by Mr. J. R. Bartlett (a) in the valley of the Gila river in Arizona. His representation of this bowlder is here copied as Fig. 8. His language is as follows:

Fig. 8.—Petroglyph in Arizona.

I found hundreds of these bowlders covered with rude figures of men, animals, and other objects of grotesque forms, all pecked in with a sharp instrument. Many of them, however, were so much defaced by long exposure to the weather and by subsequent markings, that it was impossible to make them out. Among these rocks I found several which contained sculptures on the lower side, in such a position that it would be impossible to cut them where they then lay. Some weighed many tons each and would have required immense labor to place them there, and that, too, without an apparent object. The natural inference was that they had fallen down from the summit of the mountain after the sculptures were made on them. A few only seemed recent; the others bore the marks of great antiquity.

In the collections of the Bureau of Ethnology is an album or sketch book, which contains many drawings made by Mr. F. S. Dellenbaugh, from which the following sketches of petroglyphs in Arizona are selected, together with the brief references attached to each sheet.

Fig. 9 is a copy of characters appearing in Shinumo canyon, Arizona. They are painted, the middle and right hand figures being red, the human form having a white mark upon the abdomen; the left-hand figure of a man is painted yellow, the two plumes being red.

Fig. 9.—Petroglyph in Shinumo canyon, Arizona.

The petroglyphs in Fig. 10 are rather indistinct and were copied from the vertical wall of Mound canyon. The most conspicuous forms appear to be serpents.