Question: Colter Falls is part of the Great Falls of the Missouri River where the Lewis and Clark Expedition was known to discover a freshwater fish of what order?
Sentence (from "Great Falls (Missouri River waterfall)"): Although the falls used to flow powerfully year-round, most of the water is now diverted to the 60 megawatt hydroelectric plant of upstream Ryan Dam, reducing it to a trickle in the summer months.
Relevant evidence: No