Big Sioux River Greenway Cleanup
- City of Sioux Falls
- Sioux Fals , SD United States
9am-Noon. The cleanup will take place at several parks around the Sioux Empire including Dunham Park, Legacy Park, Sertoma Park, Rotary Park, Yankton Trail Park, Spencer Park, Falls Park and others. Gloves and bags will be provided. Just show up. No pre-registration is required. Help us clean up the Big Sioux.