38 p. : ill., maps ; 26 cm.Includes bibliographical references (p. 35-38)."The Fort Sage Drift Fence, approximately 50 km. north of Reno, Nevada, consists of a well-constructed rock alignment nearly 1800 m. long and in places almost a meter high. This site probably once functioned as an aboriginal hunting facility, built more than 3000 years ago by logistically organized hunter-gatherers. The drift fence was probably used to ambush antelope, although it could have been used in the hunting of bighorn sheep in late fall or winter"--P. 4
