River fishing what to look for?

[idahoron]

Thanks for the help guys. That is what I mean. Some guys can look at a chunk of the river and say, THAT spot looks like catfish stack in there. But what makes that spot so good? A stream coming into a main river brings in new oppertunity for the fish for oxygen and feed. I can see that. What other things say CATFISH!
I am going on a 5 mile float trip in my float tube this weekend in the snake river. I hope I can get into some good catfishing. Ron
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