Download coordinates as: There are over 3,000 catalogued waterfalls in the U.S. state of Washington, according to the World Waterfall Data Base[1] This is more than any other U.S. State and includes Colonial Creek Falls, the tallest waterfall in the continental United States and the tallest in any U.S. National Park, at 2,568 feet in height.
The second tallest is Johannesburg falls (not named after the South Africa City, but after the names of historical settlers.)
Its total height is 2,465 feet.
Both waterfalls are in North Cascades National Park.