Home News Yellowstone River Is An Example Of Changing Biodiversity Yellowstone River Is An Example Of Changing BiodiversityMarch 16, 2022News By Brandon Butler The Yellowstone River is the longest undammed river in the United States. It originates at 12,800 feet above sea level in the… Login to continue reading Login Sign up for complimentary access Sign Up Now Close Previous Post Brookfield High Winter Athletes Honored Next Post VFW Starts Saturday Breakfasts Featured Local Savings -