The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . Fig. 28. Fig. 27—Terraced valley slopes at Huaynacotas, Cotahuasi Valley, Peru. Eleva-tion 11,500 feet (3,500 m.). Fig. 28—The highly cultivated and thoroughly terraced floor of the OllantaytamhoValley at Ollantaytambo. This is a tributary of the Urubamba; elevation, 11,000 Fig. 29—Cotahuasi on the floor of the Cotahuasi canyon. The even skyline of thebackground is on a rather even-topped lava plateau. The terrace on the left of thetown is formed on limestone, which is overlain by lava flows. A th
The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . Fig. 28. Fig. 27—Terraced valley slopes at Huaynacotas, Cotahuasi Valley, Peru. Eleva-tion 11,500 feet (3,500 m.). Fig. 28—The highly cultivated and thoroughly terraced floor of the OllantaytamhoValley at Ollantaytambo. This is a tributary of the Urubamba; elevation, 11,000 Fig. 29—Cotahuasi on the floor of the Cotahuasi canyon. The even skyline of thebackground is on a rather even-topped lava plateau. The terrace on the left of thetown is formed on limestone, which is overlain by lava flows. A thick deposit of ter-raced alluvium may be seen on the valley floor, and it is on one of the lower terracesthat the city of Cotahuasi stands. The higher terraces are in many cases too dry forcultivation. The canyon is nearly 7,000 feet (2,130 m.) deep and has been cut throughone hundred principal lava flows. THE COUNTRY OF THE SHEPHERDS 57 frost actually stood on the young corn, which led us to speculateon the possibility of securing from Salamanca a variety of maizethat is more nearly resistant to light frosts than any now grownin the United States. In the endless and largely unconscious ex-perimentation of these folk perched on the valley walls a resultmay have been achieved ahead of that yet reached by our pro-fessional experimenters. Certain it is that nowhe
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Keywords: ., bookauthorbo, bookcentury1900, bookdecade1910, booksubjectgeology
