How many waterfalls are in the park? 290 waterfalls can be found within the park. How tall is the Lower Falls? The Lower Falls of the Yellowstone River is more than 308 feet (93 m) tall. How much water goes over the falls? It depends on the time of year. During the spring melt of snow, there can be 63,500 gallons (240,000 l) per second flowing over the brink of Lower Falls. The flow can drop down to 5,000 gallons (18,900 l) per second in the fall. Ask a Ranger - Yellowstone National Park (U.S. National Park Service)
290 waterfalls
290 waterfalls