Chicago River: Main Stem

Chicago River (Main Stem) at North Lake Shore Drive, Chicago, 2011

Chicago River (Main Stem) at North Lake Shore Drive, Chicago, 2011

Chicago River (Main Stem) at North Columbus Drive, Chicago, 2011

Chicago River (Main Stem) at North Columbus Drive, Chicago, 2011

Chicago River (Main Stem) at North Michigan Avenue, Chicago, 2011

Chicago River (Main Stem) at North Michigan Avenue, Chicago, 2011

Chicago River (Main Stem) at North Wabash Avenue, Chicago, 2011

Chicago River (Main Stem) at North Wabash Avenue, Chicago, 2011

Chicago River (Main Stem) at North State Street, Chicago, 2011

Chicago River (Main Stem) at North State Street, Chicago, 2011

Chicago River (Main Stem) at North Dearborn Street, Chicago, 2011

Chicago River (Main Stem) at North Dearborn Street, Chicago, 2011

Chicago River (Main Stem) at North Clark Street, Chicago, 2011

Chicago River (Main Stem) at North Clark Street, Chicago, 2011

Chicago River (Main Stem) at North Lasalle Street, Chicago, 2011

Chicago River (Main Stem) at North Lasalle Street, Chicago, 2011

Chicago River (Main Stem) at North Wells Street, Chicago, 2011

Chicago River (Main Stem) at North Wells Street, Chicago, 2011

Chicago River (Main Stem) at North Franklin Street, Chicago, 2011

Chicago River (Main Stem) at North Franklin Street, Chicago, 2011