Yellowstone. Old Faithful and beyond. August 30, 2016 by Jeff Hennie "There she goes" her comment on OF, Marta sinsabaugh age 11. Maybe I should take the chacos off next summer. Boiling River, yellow stone. a 150 degree stream mingles with the cold mountain stream creating a perfect bath. Yellowstone can be a crowded mess a lot of the times. But when you get away from the main attractions, the fun really begins.