Not being very well versed in river fishing, I was wondering how deep is deep. I know that the impoundments I fish, deep may be 60 feet, but just how deep are the average pools one fishes in the park streams. Are most of the "pools" found iin lower elevations or are they just as prominent in the upper elevations? Just trying to gather a little more info so maybe my next trip might be a more productive one. Thanks for any and all info posted on this sight. flyguys