Yellowstone Park’s population of native cutthroat trout has been in serious decline for years due to drought, whirling disease, and predatory lake trout. Last year, after counting the fewest spawners since record keeping began at Yellowstone Lake, park biologists described the situation as “dismal.” Now, however, with a decent snowpack this winter and an aggressive gillnetting program that kills thousands of lake trout each year, fisheries managers see new signs of hope. Here’s the latest: