I am familiar with the river near Yuma.  Basically from Morales Dam to about 5-10 miles north of catfish cove.  Trash water trip in my little boat, or river trip in my big boat in exchange for trip out on Parker Strip, Havasu, Mohave, Bullhead, Mead etc or Central Arizona Lakes like Roosevelt, Saquaro, Canyon, Pleasant, etc... 

bob (at) yumabassman (dot) com

I live in CA so I wouldn't be able to trade a trip with you to a spot in AZ, but I travel to El Centro with the US Navy a couple of times a year and would really enjoy fishing the CO River at Yuma. I've taken my bassboat onto the CO River a couple of years ago near Blythe with no success as I had no idea what I was doing, and the river was extremely low. I may be heading back down to El Centro again in November for a couple of weeks and may want to try and fish the river one day.