The Cedar Creek Grist Mill, one of the only remaining water-powered grist mills in the United States, is hosting Treat Day from 1 to 4 p.m. Aug. 31 at 43907 N.E. Grist Mill Road, Woodland. Enjoy cookies, cakes, muffins, scones and even dog biscuits made from flour ground at the mill. Admission and treats are free. Learn more at cedarcreekgristmill.org.