Sometimes things become etched in one’s mind like petroglyphs. The edges smooth out a bit over the years but the basic shapes remain. As a boy, I traveled to the Northwest and only one “petroglyph” remained from that visit. Of course there were the lesser petroglyphs of the Space Needle, the flying fish at Pike Market and the Conservatory on Capitol Hill, but everyone remembers those things. It was the “Northwest light” that remained the most deeply etched in my mind.