Day-use fees at more than 2,400 U.S. Army Corps of Engineers operated recreation areas nationwide will be waived in recognition of National Public Lands Day, Sept. 29. The Omaha District will be participating on Sept. 22 from 9 a.m. to noon with Missouri River Relief to clean up along the Missouri River banks. Additionally, Lake Oahe near Pierre, S.D., will be hosting a brush removal and firewood distribution volunteer opportunity on Sept. 29 from 9 a.m. to noon.