Here is a reprint of a short article I published in Northwest Geology v. 49 in August 2020. I've made a few fixes that were not included...

Giant current ripples atop a kame terrace surface near Omak, WA. Hwy 20 is at the center of the image. The ripples are of similar scale...

The kame terraces of the Okanogan Valley are Alaskan in scale, but treeless and fully exposed. This extensive multi-level flight is...