Thanks for the advice. I thought about crossing at White's Ferry. It's a little bit longer but I could avoid 287. I like the 690 option. It links up with a route I found on Map My Ride that uses 722/734 down to Aldie. Taking 7100 is tempting because of the path but that would add 20-30 miles. Rt. 123 hits the ACA East at Occoquan.