Fig. 52. — Sculptured boulder iu the Gila Valley, Arizona. 



«^^ ms^ <fe 







Fig. 53. — Rock-carviug iu the Sau Pete Valley, Utah. 



Fig 54. Fig. 55. Fig. 56. Fig. 57. 



Figs. 54, 55, 56, aud ^7 (-f'^). — Rock-paintings iu Lake County, Oregon. 



