1.9K views · 126 reactions | Check out this Skyworks video of the Gates of the Mountains in Montana. Here, towering rock formations loom over the water. Lewis wrote in his journal that "in many places the rocks seem ready to tumble on us." Limestone cliffs rise to a height of 1200' above the water. Visitors can spot wildlife such as bighorn sheep, mountain goats, ospreys, eagles, falcons, otter, deer, and more. | Lewis and Clark National Historic Trail | Facebook