A neighbour was just here (looking for missing cattle) and told me that Bob was sighted yesterday and today, near his house.
He lives a LONG way from here - our best guess is that Bob was out patrolling, found the highway, and followed it.
I went down to the place he'd been seen, but could not find him. I did leave my number with some people, though, so there is hope.
He was headed in the right direction, anyway - he's west of here, and had made it a bit closer east when he was seen today. Neighbour had tried to get Bob to come close enough to read a tag (which he hasn't got anyway, haven't gotten to that yet!) but Bob was shy. At least now he knows whose dog he is and will call if he sees him again.
Come on, Bob, you can do it ... keep heading east!