In the summer of 1909 the writer was detailed by the Secretary of the Smithsonian Institution, at the request of the Secretary of the Interior, to continue the excavation and repair of ruins in the Mesa Verde National Park, Colorado. This work was placed under his sole charge and continued through the months May to August, inclusive. In that time the writer was able to repair completely this great ruin and to leave it in such condition that tourists and students visiting it may learn much more about cliff-dwellings than was possible before the work was undertaken.
The force of laborers, numbering on an average 15 workmen, was from Mancos, Colorado. Many of them had worked on Spruce-tree House during the previous year and had become expert in repairing ruins. By their aid it was possible to accomplish more and at less expense than was expected. It has fallen to the writer to prepare the report on the work which he had the honor to direct, and he is conscious how difficult it is to put it into a form that will adequately express the devotion with which those under him have accomplished their respective tasks.
A report on the general results accomplished at Cliff Palace was published by the Secretary of the Interior in 1909; the following account considers in a more detailed way the various scientific phases. The purpose of the present paper is to present a more accurate account of Cliff Palace than was possible before the excavation and repair work was done, and to increase existing knowledge by directing attention to the scientific data revealed by excavations of this largest, most picturesque, and most typical cliff-dwelling in the Southwest. In order to give this account a monographic form there have been introduced the most important descriptions of Cliff Palace previously published. There is also included a description of the few minor antiquities brought to light in the progress of the work. These specimens are now in the United States National Museum, where they form the nucleus of a collection from Cliff Palace. The increasing interest, local and national, in the prehistoric culture of the Southwest and the influence of these antiquities in attracting visitors to localities where they exist, furnish a reason for considering in some detail various other questions of general interest connected with cliff-dwellings that naturally suggest themselves to those interested in the history of man in America.
