Open Space STL, along with our partners from Great Rivers Greenway, MSD Project Clear, Missouri Stream Teams, St. Louis County Parks, and Earthways Center are grateful to host River des Peres Trash Bash (fourth Saturday in October) and Confluence Trash Bash (second Saturday in April) each year. Read on to learn more about past years and how you can get involved!
Reports:
2022 River des Peres Trash Bash
Our hardworking volunteers:
River des Peres Trash Bash - Blake Snyder Park 
River des Peres Trash Bash 2021 - Deer Creek Watershed
River des Peres Trash Bash 2021- Deer Creek Watershed, Webster Groves, MO
River des Peres Trash Bash - Heman Park
Photo Submitted By, Laura Falk
River des Peres Trash Bash - Memorial Park, Truman Middle School, Girl Scout Troop 3507, Photo Submitted By, Lauren Butz
River des Peres Trash Bash - Mississippi River Greenway, Photo Submitted By, MSD Project Clear
River des Peres Trash Bash - Mississippi River Greenway, Photo Submitted By, MSD Project Clear
River des Peres Trash Bash - North Oak Tree Park, Photo Submitted By, Francis Baum
This is dedication!! River des Peres Trash Bash - River des Park, Photo Submitted By, John Vogl
River des Peres Trash Bash - River des Park, Photo Submitted By, John Vogl
River des Peres Trash Bash 2021, Self Guided Volunteer,Zoe G. 
River des Peres Trash Bash - Wilmore Park, Photo Submitted By, Molly Koebbe