There were many different Indian familys living along the river. The river travels down through Minneapolis, where the St. Anthony Lock and Dam separate the river from it's headquarters. Other cities on the river are St. Paul, St. Louis, Memphis, Vicksburg, Baton Rouge and New Orleans before coming to the Gulf of Mexico. They need to keep the river 10ft deep, for the barges that carry oil, grain, coal, iron steel, chemicals and machines along with other things. They start dredging at the Camden Bridge in Minneapolis and go all the way down to New Orleans.
Many people like to camp along the river.
Our family goies boating and camping on the river. The Grand Canyon is in North Western Arizona. It was carved by the Colorodo River. The walls are made of limestone, sandstone, lava, and other rocks. The Grand Canyon is one mile deep at some parts.