Wells Gray Provincial Park

The area under Mount Meager, although that dam wasn't caused by ice, but a collapsing volcanic dome.

We also have the Wells Gray region, where waterfalls are another awe-inspiring example of a stream misfit, where a glacier outburst flood has carved a valley, and today, a much smaller stream inhabits the valley.

I guess I'll add the definition for the term.

For you, on your next trivia night, misfit or an underfit stream is a smaller river or stream sitting inside a massive, oversized valley carved by a megaflood.