“No one must look at the rocks of the bridge. People knew that some day it would fall. They must not anger the Spirit Chief by looking at it, their wise men told them.

The Klickitat Indians had a different law. Only a few men necessary to paddle the canoes would pass under the bridge. All the others would land when they approached the Bridge of the Gods, walk around to the opposite side of it, and there reenter the canoes. The oarsmen always bade their friends good-bye, fearing that the bridge would fall while they were passing under it. After many snows, no one knows how many, the prophecy of the wise men came true. The Bridge of the Gods fell. The rocks that had once been the body of Thunderbird formed the rapids in the river that were long known as Cascades of the Columbia.”

Read more here