Favored Holding Spots in a Typical Section of River
- In riffles and shallows, especially during insect hatches.
- In front of boulders, where the water speed in front is slowed by the rock behind. This is a popular spot during heavy hatches.
- Along banks where the current is slower and terrestrial insects fall in.
- Behind boulders that offer protection from the current.
- In drop-offs between riffles and the heads of run that offer protection from the current and a steady supply of food.
- Behind submerged boulders or other protective pockets.
- In front of surface obstructions that can trap good insects.
- Behind logs that offer protection and possible ants.
- At the floor of runs where the water is slower and food is plentiful.
- In quiet holding pockets between subsurface rock ledges.
- In back eddies where the current is slower and where insects tend to collect.
- In seams between slow and faster water where the current isn’t too strong and food passes nearby.
- At the bottom of a deep pool.
- In the shade of an overhanging streamside tree protected from view.
- In and around weed beds that offer food and protection from the current.
- In gravel bar shallows in late evening.
- In the tail of a run where the current is slower.
- Under or inside undercut banks.