Published online by Cambridge University Press: 25 January 2017
During the summer seasons of 1947, 1948, and 1949 the University of Chicago and the Illinois State Museum co-sponsored archaeological excavations in LaSalle county, northern Illinois. In 1947 the site on top of Starved Rock (known as LS 12) was sampled by means of several test pits. In 1948 intensive excavation was carried out at LS 12. In 1949 LS 12 was again intensively excavated by a small crew of students under the writer's direction. As of January, 1950 approximately one-quarter of the total surface of the Rock has been excavated, including excavation carried out in 1949 by Richard S. Hagen for the state of Illinois.