During the Spring and Fall Sweep the Creek events, hundreds of people come out to help rid the park of trash, keep the water clean for wildlife and plants and experience the wonders of Sligo Creek in a new way. Friends of Sligo Creek (FOSC) volunteers don gloves, boots, even waders, to collect an amazing variety of plastic, metal, glass and other trash that finds its way into the 8 mile length of Sligo Creek Park. Sometimes so many volunteers come out that we can also tackle eradication of invasive vines and plants under direction of a certified Weed Warrior volunteer and our Remove Invasives Program committee. Known as Sweep the Creek, it’s a FOSC signature program usually held over 2 days.