The Watershed Alliance of Southwest Washington will host a Litter Cleanup at Frenchman’s Bar from 10:30 a.m. to 12:30 p.m. June 28. Volunteers should meet at Frenchman’s Bar Regional Park, 9612 N.W. Lower River Rd., Vancouver. Volunteers should dress for the weather with sturdy shoes and bring their own snacks and water. Register at thewatershedalliance.org/events/.