Ten leagues inland from Tambo de Mora there are petroglyphs in the valley of Chincha river between Huancor and Santa Rosa near Yauri-tambo, which last name means "copper harbor" in Quechua. A hill slopes from the right, about 160 m. to the southeast, down to the river bed. The bed has an elevation of perhaps 270 m. above sea level, and a road runs some 10 m. higher.