To subdue a river such as the Colorado—not simply to whip it into submission for a season or two, but to break and yoke the thing by taming its rampages, vanquishing its moods, and converting its kinetics into energy that serves human beings—such a task is not only a colossal technical undertaking but, perhaps even more significant, a monumental act of audacity.
To subdue a river such as the Colorado—not simply to whip it into submission for a season or two, but to break and yoke the thing by taming its rampages, vanquishing its moods, and converting its kinetics into energy that serves human beings—such a task is not only a colossal technical undertaking but, perhaps even more significant, a monumental act of audacity.
Natural power vs human audacity.

