As its newly reversed currents flowed toward Lake Erie, the river carved its way around glacial debris left by the receding ice sheet, resulting in the river's winding U-shape.
These meanderings stretched the length of the river (which was only 30 miles (50 km) when traveled directly) into a 100-mile (160 km) trek from its headwaters to its mouth.
The final glacial retreat, which occurred 10,000–12,000 years ago, caused changes in the drainage pattern near Akron.
This change in pattern caused the originally south-flowing Cuyahoga to flow to the north.
The event helped to spur the environmental movement in the US.
It continues on its 84.9 miles (136.6 km) journey flowing southward to Akron and Cuyahoga Falls, where it turns sharply north and flows through the Cuyahoga Valley National Park in northern Summit County and southern Cuyahoga County.
It then flows through Independence, Valley View, Cuyahoga Heights, Newburgh Heights and Cleveland to its northern terminus, emptying into Lake Erie.
The Cuyahoga River and its tributaries drain 813 square miles (2,110 km) of land in portions of six counties.
The river is a relatively recent geological formation, formed by the advance and retreat of ice sheets during the last ice age.
) is a river in the United States, located in Northeast Ohio, that feeds into Lake Erie.
The river is famous for having been so polluted that it "caught fire" in 1969.