… The last known Hayden Creek cutthroat trout — probably most closely related to Colorado’s state fish, the greenback cutthroat trout — were literally pulled from an active fire zone on Hayden Pass in 2016 in order to keep the fish from winking out altogether. Just last fall, Colorado Parks and Wildlife biologists confirmed that reintroduced populations of the fish were reproducing, and, more importantly, they reported, the fish had reproduced several times since they were reintroduced in their once-native waters.