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... Science Frontiers ONLINE No. 31: Jan-Feb 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Phoenix vs. the hohokam Rapidly expanding Phoenix is gobbling up the vestiges of the Hohokam. Archeologists are striving to save as much information as possible before the bulldozers destroy the best artifacts left by this remarkable Indian civilization. This beautifully illustrated article touches on several of the precocious and puzzling features of the Hohokam Period, circa 0-1 ,400 AD. (1 ) The Hohokam apparently employed acid-etching to produce designs on shells. Acetic acid from fermented cactus juice was use to eat away portions of the shell not protected by tar. (2 ) Four-story Casa Grande, which seems to have been an astronomical observatory, ... at least 600 big wooden beams, all of which had to be transported over 50 miles from sources in the mountains. (3 ) The Hohokam built an elaborate, well-engineered system of irrigation canals. (4 ) Unexplained are many flat-bottomed oval pits up to 182 feet long, 55 feet wide, and 13-18 feet deep. Some surmise they were ball courts. (5 ) Also puzzling are rectangular earthen mounds, 75 x 95 feet at the base and 12 feet high, with flat adobe-covered tops. (Adams, Daniel B.; "Last Ditch Archeology," Science 83, 4:28, December 1983.) Reference. The Hohokam canals and those built by other ancient peoples are presented in our Handbook Ancient Man. For details ...
Terms matched: 2 - Score: 175 - 15 May 2017 - URL: /sf031/sf031p01.htm

... Science Frontiers ONLINE No. 19: Jan-Feb 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A PREHISTORIC TVA?The Hohokam Indians lived along the Salt River Valley, in Arizona, about 300 BC to 1450 AD. They constructed a network of irrigation canals that is certainly one of the wonders of the Ancient New World. Early investigators recorded more than 500 kilometers of major canals and 1,600 kilometers of smaller ones. (Less than 10 kilometers of these remain intact today.) One of the main canals was 3 meters deep, 11 meters wide at ground level, and 14 kilometers long. Old and recent aerial photos show traces of an incredibly complex irrigation network. W.B . Masse, the author of this ... , is very impressed by the earth-moving task but even more so by the degree of social coordination and control that must have been exerted all along the Salt River Valley in building and regulating the use of this remarkable canal system. (Masse, W. Bruce; "Prehistoric Irrigation Systems in the Salt River Valley, Arizona," Science, 214:408, 1981.) Reference. Many other ancient canal projects are described in our Handbook: Ancient Man. Ordering information here . Composite map of canals near Tempe constructed from aerial photographs. From Science Frontiers #19, JAN-FEB 1982 . 1982-2000 William R. Corliss ...
Terms matched: 2 - Score: 132 - 15 May 2017 - URL: /sf019/sf019p01.htm
... in from somewhere outside the canyon. (Anonymous; "Mystery Mound Appears to Be an Ancient Reservoir," San Francisco Chronicle, June 6, 1997. Cr. D. Phelps. Also: Anonymous; "Mysterious Mesa Verde Mound Turns Out to Be a Reservoir," Deseret News, June 10-11, 1997. Cr. S. Jones.) Comment. The closely related Hohokam Indians built miles of well-engineered canals where Phoenix now stands. See SF#19 for description. From Science Frontiers #116, MAR-APR 1998 . 1998-2000 William R. Corliss ...
Terms matched: 2 - Score: 118 - 15 May 2017 - URL: /sf116/sf116p02.htm