VERY LONG (I think)
Rio grande river is 3051 km long...
Grand-River South-East
The Colorado River is 1,450 miles long (2,330 kilometers). It flows from Grand Lake, CO to the Gulf of California.
The canyon is 277 miles (446 km) long.
The Grand Canyon was carved over millions of years by the Colorado River.
The Colorado River.
1,450 miles [2,330 km]
ANSWER:Yes. Millions of years ago. But what caused the grand canyon was the Colorado river, cutting into the soil for a long, long time.
The Grand Canyon.
The Grand River.
the Grand River is the longest river in Michigan.
Where does the Rio Grand river ends