Excerpt from Prehistoric Ruins of the Gila Valley The level plains bordering the Gila River and its tributaries were inhabited in prehistoric times by an agricultural people having a homogeneous culture. The prehistoric inhabitants built houses of two types: the one large, often several stories high, with massive walls, and the other, of more fragile character, serving for their dwellings. The material with which the latter were built and the manner in which they were constructed were not sufficiently durable to resist the elements, and the walls have fallen, augmenting the height of the debris accumulated at their foundations. Sand blown by winds has drifted over the ruins, covering the rooms and forming mounds over them, from which, in a few cases, there still project, a few feet high, irregular fragments of the original walls. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.