Karen Osler (right), a park ranger with U.S. Army Corps of Engineers Pittsburgh District, hands off water safety materials to a volunteer camp host at the Mill Run Campground in Maryland, July 14, 2022. Osler is in charge of the volunteer program for Youghiogheny River Lake. The camp hosts are critical during the summer to help visitors and maintain the upkeep of campgrounds operated by the Army Corps staff. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)