Things to do in Idaho Falls, Idaho Idaho Falls is a charming city in eastern Idaho. Idaho Falls is located 28 miles west of Rexburg, Idaho, home to Brigham Young University-Idaho. The city of Idaho Falls is sure to leave you in awe with all of the natural beauty it possesses. Idaho Falls, and the surrounding area, was first populated with a sparse amount of cattle and sheep ranchers. The area of Idaho Falls didn't see any major expansion until 1864, when a gentleman by the name of Harry Rickets "built and operated a ferry on the Snake River." The ferry served as []