I haven't been posting because there's no Internet at Yellowstone. Here's one sketch from Virginia City, an old mining town in the Rockies. This old Ford still runs, the locals told me.
The sketch is a mixed bag of watercolor, brown fountain pen, and water-soluble pencils. The original is about 3 x 4 inches in a mini Moleskine sketchbook. It's a big file if you want to click on it.
We've been enjoying the company of about 40 members of the Society of Architectural Illustrators. Members have come not only from America, but also from Japan, Australia, and New Zealand. These artists have experience in both architecture and illustration, and they create artistic but accurate renderings of proposed buildings, both in digital and traditional media. They meet annually for a juried exhibition, workshops, hikes, and sketching excursions. They're amazing watercolorists and sketchers. More information here: link.