Productive fishing spots are found where the stream's structure creates ideal trout habitat. Key areas include the heads and tails of pools, where faster water meets slower water, creating feeding lanes. Undercut banks, especially those shaded by vegetation, often hold larger fish. Riffle sections are excellent for nymphing, as they provide both food and oxygen. Confluences with smaller tributaries can also be hotspots, as they bring in new nutrients and often create deeper scour holes.