The Olive marabou leech is a good choice for practically anywhere. When you are trying to find the streamer pattern that is going to work best on any given day, this fly should be one of the first ones to try. It is light enough to run it behind another streamer for a double fly rig to double your odds of catching fish. It has amazing action in the water that will often be very hard for trout to resist. I strongly recommend to get at least a couple of these marabou leeches to try out on your favorite rivers, its not likely that you will regret it.