Space prohibits covering each of them in detail here. In the preceding overview of area waters there is general information about the life forms available to trout in each drainage. In the section that follows on popular flies there is additional information and, where I believe appropriate, specific information. By specific information I means that a certain pattern simulates a specific insect which is available as a food form to trout at a specific time or in a specific water location. My intent in doing this is to provide the fly fisher with information for making an essential fly selection but not to deter him from experimenting with pattern usage on his own terms.
Experimentation leads to discovery which is one of the joys in fly fishing.
The number of variations is a good measure of its effectiveness. Snake River Country has 32 pages of flies, including color photos of each, the recipe and additional comments on the insect it imitates and where it is fished and how. Space prohibits covering each of them in detail here. However the following fly is representative of the information given for each of the included flies. Tiemco 100 or equivalent, size 16.