As water temperatures drop in the winter months, a trout's metabolism slows dramatically. To conserve energy, trout migrate to deeper pools and runs with slow to moderate currents. These areas - often referred to as "soft water" - provide ideal winter holding spots, allowing trout to rest while the current delivers food directly into their feeding lanes.

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During this time, it's crucial to fish nymphs deep and slow. Cover the water thoroughly - trout won't move far to chase food in the cold. Keep in mind that fish often group together in winter. If you catch one, there's a good chance more are nearby.