Geology of the Middle Fork Salmon River
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	Middle Fork Salmon River Vicinity Map
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Year - 2007 Scale - 1" to the Mile Topo Lines - Yes Plastic Rocks on the Middle Fork! Every boaters challenge is to avoid as many rocks as possible in making a way down the river. Enjoy the whitewater, but also take the time to enjoy learning about the natural world. Remember, as you float the river, you will be seeing some of the oldest geologic features in Idaho and some of the youngest. This is an active and dynamic system undergoing constant change. One million years in the past or future would offer a very different trip down the Middle Fork. You have a rare opportunity to enjoy a thin slice of geologic time.