File:The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian (1916) (14782171772).jpg

Identifier: andesofsouthernp00 (find matches)
Title: The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian
Year: 1916 (1910s)
Authors: Bowman, Isaiah, 1878-1950 American Geographical Society of New York
Subjects: Yale Peruvian Expedition (1911) Physical geography Geology Human geography
Publisher: (New York) Pub. for the American Geographical Society of New York by H. Holt and Company
Contributing Library: Wellesley College Library
Digitizing Sponsor: Boston Library Consortium Member Libraries

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s nearly fifty miles toward the axis ofthe mountains, where, turning almost in a complete circle, it makesa final assault upon the eastern mountain ranges. Fifty milesfarther on it breaks through the long sharp-crested chain of theFront Range of the Andes in a splendid gorge more than a half-mile deep, the famous Pongo de Mainique (Fig. 9). Our chief object in descending the line of rapids was to studythe canyon of the Urubamba below Rosalina and to make a topo-graphic sketch map of it. We also wished to know what secretsmight be gathered in this hitherto unexplored stretch of country,what people dwelt along its banks, and if the vague tales of de-serted towns and fugitive tribes had any basis in fact. We could gather almost no information as to the nature of theriver except from the report of Major Kerbey, an American, who,in 1897, descended the last twenty miles of the one hundred weproposed to navigate. He pronounced the journey more hazard- 8 THE RAPIDS AND CANYONS OF THE URUBAMBA
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o de Mainique ROUGH SKETCH CONTOUHMAP of the URUBAMBA VALLEY BETWEEN ROSALINAand PONGO de MAINIQUE Try ISAIAH BOWMAN Ajpprox. scale X- our interval. rapids alluvial flats, locally calledpi ay asElevation of Rosalina ■ 2,000 feet » Pongo de Mainique: 1.200 feet» v Passes on trail between Rosalina and Pongo de Mainique ■ 5000-7.000 ft. Fig. 8—Sketch map showing the route of the Yale-Peruvian Expedition of 1911down the Urubamba Valley, together with the area of the main map and the changesin the delineation of the bend of the Urubamba resulting from the surveys of theExpedition. Based on the Mapa que comprende las ultimas exploraciones y estudiosverificados desde 1900 hasta 1906, 1:1,000,000, Bol. Soc. Geogr. Lima, Vol. 25, No. 3,1909. For details of the trail from Rosalina to Pongo de Mainique see Piano de lasSecciones y Afluentes del Rio Urubamba: 1902-1904, scale 1:150,000 by Luis M.Robledo in Bol. Soc. Geogr. Lima, Vol. 25, No. 4, 1909. Only the lower slopes ofthe long mounta

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