I am interested in the comparison between the Grand Canyon & the Little Grand Canyon of the Toutle River.
Me too. I'm not finding a place on the site where it's been discussed in detail though.
Here are a couple of links
CH581.1: Mount St. Helens canyon and the Grand CanyonMt. St. Helens and Catastrophism | The Institute for Creation Research
If you want to fish for people to discuss it with you, I suggest
A question about "Great Flood" geology.
The main point for this topic, as Coyote demonstrated, is that both are cases of gradualism. The much smaller scale in size and density at Mt. St. Helen's simply leads to a much smaller timescale in proportion.
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