Just for your information: we recently took a tour of the Pendleton Washougal mill. They are offered at 11am and 1pm during work days, but reservations are required. It is a good tour, especially since it is where they do the finishing of the fabric (dye, wash, trim, etc).
Due to the pandemic the company decided to have all of their fabric sold in one place (by the way, it is fabric with tiny flaws), it is located in a outlet story here: 8500 SE McLoughlin Blvd, Portland, OR 97222
Website: https://woolenmill.store/
Those who work in the Washougal store are not happy. They loved seeing how the fabric was used.
This is a mostly “shop in person” store (just like what we did in Washougal and Pendleton), but they accept mail orders by email or phone. No secure online purchasing. Just an FYI.