You know what it looks like… but what is it called?
TAKE THE QUIZ“great river”
We have one entry that includes the term great river.
Great River Road
geographical namescenic road system extending from southern Manitoba and western Ontario through Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana following the Mississippi River for much of its distance
Love words? Need even more definitions?
Merriam-Webster unabridged