d grateful thanks are due also to Mr. Edward S. Harkness for
offering generous assistance when aid was most difficult to secure; to
Mr. Gilbert Grosvenor and the National Geographic Society for liberal
and enthusiastic support; to President Taft of the United States and
President Leguia of Peru for official help of a most important nature;
to Messrs. W. R. Grace & Company and to Mr. William L. Morkill and
Mr. L. S. Blaisdell, of the Peruvian Corporation, for cordial and
untiring cooeperation; to Don Cesare Lomellini, Don Pedro Duque,
and their sons, and Mr. Frederic B. Johnson, of Yale University,
for many practical kindnesses; to Mrs. Blanche Peberdy Tompkins and
Miss Mary G. Reynolds for invaluable secretarial aid; and last, but
by no means least, to Mrs. Alfred Mitchell for making possible the
writing of this book.

Hiram Bingham

Yale University
October 1, 1922

Contents

I. Crossing the Desert 1
II. Climbing Coropuna 23
III. To Parinacochas 50
IV. Flamingo Lake 74
V. Titicaca 95
VI. The Vilcanota Country and the Peruvian Highlanders 110
VII. The Valley of the Huatanay 133
VIII. The Oldest City in South America 157
IX. The Last Four Incas 170
X. Searching for the Last Inca Capital 198
XI. The Search Continued 217
XII. The Fortress of Uiticos and the House of the Sun 241
XIII. Vilcabamba 255
XIV. Conservidayoc 266
XV. The Pampa of Ghosts 292
XVI. The Story of Tampu-tocco, a Lost City of the First Incas 306
XVII. Machu Picchu 314
XVIII. The Origin of Machu Picchu 326

Glossary 341
Bibliography of the Peruvian Expeditions of Yale University
and the National Geographic Society 345
Index 353

Illustrations

"Something Hidden. Go and find it. Go and look behind the Ranges"
Frontispiece
Sketch Map of Southern Peru 1
Mt. Coropuna from the Northwest 12
Mt. Coropuna from the South 24
The Base Camp, Coropuna, at 17,300 Feet 32
Photograph by H. L. Tucker
Camping at 18,450 Feet on the Slopes of Coropuna 32
Photograph by H. L. Tucker
One of the Frequent Rests in the Ascent of Coropuna 42
Photograph by H. L. Tucker
The Camp on the Summit 42
Photograph by H. L. Tucker
The Sub-Prefect of Cotahuasi, his Military Aide, and Messrs. Tucker,
Hendriksen, Bowman, and Bingham inspecting the Local Rug-weaving
Industry 60
Photograph by C. Watkins
Inca Storehouses at Chichipampa, near Colta 66
Photograph by H. L. Tucker
Flamingoes on Lake Parinacochas, and Mt. Sarasar