Picture 4--Members of the 1988 Grinnell Archaeological Field School on the petroglyph rocks near the site.
Front: John Whittaker, Dana Robson, Danja Foss, Colleen Mahar, Kathy Kamp, and Sara Deichman.
Second Row: Suzanna Smith, Rebecca Matthews, Steven Hingtgen, and Paula Briggs.
Back: Richard Wallace and Amy Naughton.