Series III of the papers of Charles Schweighauser, Professor of Environmental Studies (1974-), English & Astronomy/Physics (1984-) consists of materials dealing with the establishment of the National Undergraduate Research Observatory (NURO), based in Flagstaff, AZ, whose main goal was to provide state of the art research facilities for students and faculty from smaller U.S colleges and universities. NURO materials include correspondence, dues information, information for students, and minutes from NURO conferences. Also included are letters and funding aids for astronomical research projects and articles about astronomy. Photographs and plates taken at the SSU observatory as well as at the Lowell Observatory in Flagstaff, AZ are included.

A series of video tapes featuring the Sangamon River Valley Course, the Sand Prairie near Bath, IL, the Rock Spring Prairie near Decatur, IL, and the Annular Eclipse observed at SSU in 1994 are located in the Audio and Video Tape Collection (T2706-2783).