Chicago Mayor Surprises Residents With Green River for St. Patrick's Day

St. Patrick's Day: Why they began dyeing the Chicago River green : NPR

8 Biggest St. Patrick's Day Parades in the USA (2O23)

Mammoth Cave National Park - No, we didn't dye our streams green for St. Patrick's Day.. Dibs on the idea though. Bet no one has ever thought of that one before 🍀

Chicago River dyed green for St. Patrick's Day

Despite St. Patrick's Day COVID restrictions, Chicago River runs green - ABC News

St. Patrick's Day: Chicago River dyed as parade returns after COVID cancelations - Chicago Sun-Times

Chicago delivers St. Patrick's Day surprise, as river runs green again