Karl, if you like that video Adam posted, that video is sort of a repackage of some earlier work of Oz. David posted the Wendell Ozfovich work several years ago and I bought the series on dvd before they got on youtube. Even though the filming quality is not the best the info is worth its weight in gold. All of it really changes the way I think about the river and trout. David posted this thread of the collection.
@dwalker If I never thanked you for introducing this stuff to us, thank you David!!! There is not a day I step on the river that I do not think about that footage. I always especially enjoy that image of a dozen trout hiding in the bunker under the boulder. I always enjoy targeting those river caves and it puts a smile on my face to see a fish dart out to grab my fly and drag the prize back to its cave.
I know this is weird but when they do that it reminds me of how barnacles feed.