We were riding the bikes through Milwaukie on the 4th of July, and we spotted a bunch of these cool manhole covers out in the streets.
They are fairly new I am sure. I haven’t noticed them before. Plus they still have that cool look of clean metal mixed with that nice patina of newly rusted iron. The first ones I saw were in the industrial parkway, and have later seen a few more in and around city center. I like them a lot.