Nice pics! You are correct, the CB trail system is the epitamy of "interesting" I've found
. My in-laws live there, over by the Mall of the Bluffs, which is kind of nice because their home is about a mile from the Wabash Trace trail head. It's an absolutely gorgeous trail, I'd highly recommend getting lost on it for a day or so. It's dirt/gravel, but I've ridden it on slicks and have been fine, so I'd imagine you'd enjoy it on the BA as well.