The collection consists of assorted records divided by subject generated during the expedition and general material about Easter Island subsequently added. Records include correspondence, magazine clippings, newsletters, personnel lists, and reports.

The collection consists of correspondence, briefs, reports, speeches, clippings, and photographs relating to the history of the Skagit Valley project and the subsequent lobbying on the part of the ROSS (Run Out Skagit Spoilers) Committee (1969-1982).