The NAGS tour for GEO2001 in Portland OR (weather permitting) will take in the Arnold Canal sections A-1 through A-8 and the Ochoco Canal sections O-1 through O-4
The NAGS tour for GEO2001 in Portland OR (weather permitting) will take in the Arnold Canal sections A-1 through A-8 and the Ochoco Canal sections O-1 through O-4