Ice and slush have mostly melted, but the Yellowstone River is still very cold and fish are sluggish. Nymphing is the most effective approach right now; if you throw streamers, plan on a slow-motion strip or swing. Watch for spotty midge hatches depending on wind, and pay close attention to forecasts, wind, and potential ice shelves at ramps. Current flow: 1,260 CFS. Full fly pattern list included.