As winter fades and the first signs of spring appear, fly fishing on the Watauga and South Holston Rivers in northeast Tennessee begins to heat up. March marks the start of an exciting transition period, with trout becoming more active as water temperatures rise. While the hatches aren’t as prolific as later in the season, early spring presents excellent opportunities for anglers to get on the water before the crowds arrive.

Effective Early Spring Fly Fishing Strategies

March fishing often requires a versatile approach. Nymphing remains highly effective, with patterns such as Pheasant Tails, Hare’s Ears, and midges producing consistent results. Streamers can also be a great choice, especially during periods of higher flow, as trout become more aggressive. On warmer days, anglers may start to see blue-winged olives (BWOs) hatching, providing the first real dry fly opportunities of the year.

The South Holston River: A Spring Hotspot

The South Holston River, known for its consistent cold water and prolific insect life, also comes alive in early spring. While midges and BWOs dominate the scene, anglers should be prepared for the occasional sulphur hatch, which can start appearing on warmer days in late March. The river’s wild brown trout population is particularly active during this time, making it a prime destination for those looking to land trophy-sized fish.

The April Caddis Hatch: A Season Highlight

As spring progresses, one of the most anticipated events of the year arrives—the April caddis hatch. Often called the “Mother’s Day Caddis Hatch,” this emergence of Grannom caddis (Brachycentrus sp.) typically begins in mid-April and extends into early May. This hatch transforms the Watauga River into a dry fly paradise, as trout rise aggressively to feed on the abundant insects.

Best Tactics for the April Caddis Hatch

For anglers targeting trout during this hatch, dry fly presentations are key. Patterns such as the RC Leggy, Bullet Quill, and American Pheasant Tail are excellent choices. However, tactics should be adjusted based on water conditions. During high flows from spring rains, targeting softer water near the banks with nymphs or emergers can be productive. During lower flows, traditional dry fly techniques work well in slower runs and riffles.

Conclusion

Early spring fly fishing on the Watauga and South Holston Rivers offers a unique mix of challenges and rewards, with March providing a quieter but productive experience and April delivering some of the best dry fly action of the year.