Stuart has not been found yet.
I met up with the dog's owner and the Search & Rescue dog they hired after they conducted their search this morning and gave them a ride back to their home. They saw signs of him, tracks & poop. Their search led them to an area not more than a 1/4 mile from my house - if only Stuart had stopped by for a visit!
Good news is they didn't find the dog deceased, and he is in an area where there are many ponds, lakes and streams so he should be able to keep himself hydrated in these days of 90+ weather we have been having.
They now have some specific areas they can post flyers and talk to residents and business owners.
All local shelters, vet offices, and even the police have been notified and are keeping a look out.
New posting can be found here - http://portland.craigslist.org/mlt/pet/1902915916.html
They are also running an ad in our local newspapers