Yellowstone Lake - nursery, sanctuary and stronghold of Yellowstone cutthroat trout for more than 10,000 years - is under attack from an invasive, non-native predator - lake trout. More than 40 species depend on Yellowstone cutthroat trout. Help eliminate these non-native, predatory lake trout and keep Yellowstone's ecosystem intact. Learn more at ypf.org/trout.

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