Yellow Breeches: Yellow Breeches is fed by a combination of limestone springs and freestone tributaries. Recognized as one of the most popular trout streams in Pennsylvania, Yellow Breeches is a stocked trout fishery ranging in width from 15 to 50 feet across. Chest waders are recommended.
| Month | Fly | Size |
| December-January | Woolly Buggers Sculpins Nymphs |
8-12 6-12 14-18 |
| February | Woolly Buggers Sculpins Nymphs Midges |
8-10 6-12 14-18 20-26 |
| March | Sculpins Midges Nymphs Stoneflies |
6-12 20-26 12-16 16-18 |
| April | Blue Winged Olive Midges Sculpins Caddis |
16-20 20-26 6-12 16-20 |
| May | Blue Winged Olive Midges Sculpins Sulphurs Caddis |
16-20 20-26 6-12 14-18 14-20 |
| June | Blue Winged Olive Sculpins Sulphurs Ants/Beetles Caddis |
16-20 6-12 14-16 12-18 16-18 |
| July | Caddis Midges Ants/Beetles Sculpins |
16-18 20-24 12-18 6-12 |
| August | White Flies Nymphs Ants/Beetles Midges |
12-16 14-18 12-16 20-24 |
| September | Nymphs Ants/Beetles Hoppers/Crickets Midges |
14-18 12-14 8-12 20-24 |
| October | Caddis Sculpins Midges Hoppers/Crickets |
16-20 6-10 20-24 8-12 |
| November-December | Woolly Buggers Sculpins Midges |
8-10 4-12 20-24 |