On Thursday, when the conference was over, I drove back to the Columbia Gorge.
[All the photos can be seen here on Flickr.]
I first stopped at a building that we had first seen from the highway far below. Vista House was the apparently what rest areas looked like in 1916 when it was built, along the new Highway 30 (now called the Historic Columbia River Gorge Highway). Stone, stained glass, etc. It now houses a museum and visitors center.
Then it was back to Portland, with a last dinner at Kells Brew Pub, which was down the hill from my hotel, as I was off on another road trip the next morning.