Apr 20th, 1:00 PM - 4:00 PM


2008 Archaeological Excavations at Three Island Crossing

Faculty Sponsor

Dr. Mark Plew


Three Island Crossing (190EL0294) is located along the Snake River near Glenns Ferry, Idaho. It is situated near the Three Island Crossing on the Oregon Trail. Boise State University conducted excavations at the site in 1986 and 1987. These excavations documented three Late Archaic occupations dating during the past 1500 years. Evidence of multiple occupations/uses of the site is documented by the recovery of more than 1400 prehistoric artifacts, and the excavation of a structure and storage pits. The site produced the largest assemblage of fish remains (salmon) from any Snake River site. In 2008 the site was revisited in an effort to assess the extent to which the site area extended to the east along the Snake River. Analysis of the material culture remains indicate that the area studied in 2008 is likely on the periphery of the greater site area.