The U.S. Army Corps of Engineers, Baltimore District (USACE), will open Ives Run Campground from May 1, 2021, until Oct. 31, 2021. The Cowanesque Lake, Tompkins Campground, will open from May 15, 2021, until Labor Day. USACE reminds all visitors, volunteers and employees to wear a face mask in all USACE buildings and facilities or outdoors if physical distancing cannot be maintained.