University of Illinois at Urbana-ChampaignInfrared; By University of Illinouis Committee on Aerial Photography; Scale 1: 5000 (1:5000)JPEGoai:digital.library.illinois.edu:ee735cb0-8a10-0137-6d99-02d0d7bfd6e4-c802engPublicStereogram No. 802 - Sewage Treatment PlantImageryIllinois--Champaign CountyIllinois1969-09University of Illinois Urbana-Champaign