This week we talk about George Catlin, porcupine caribou, and the Bogd Khan Mountain. We also discuss Yosemite, the Department of the Interior, and the Louisiana Purchase. For more information about this podcast and to view the copious show notes, visit letsknowthings.com. Become a patron on Patreon. My book Becoming Who We Need To Be is available as an audiobook, paperback, and ebook.