Yellowstone National Park
The park has been fishing pretty darn well. The window on the firehole is all but closed with the water approaching 80 degrees on the warmer days. That being said, the gibbon, Madison, and all the creeks on the west side have been fishing pretty well. Dry droppers have been a great option along with swinging soft hackles through the riffles. The East side of the park has been day to day. Most of the water is fishable, but still pretty silty especially on the warmer days. That said, bigger nymphs, streamers, and occasionally a big chubby will get bit. I like soda butte creek the best this time of year for a dry dropper, but the lamar has its days chucking smaller streamers around.
Park biologists are conducting a study to determine fish movement patterns and population sizes in Yellowstone Lake and several other park waters. Biologists have attached a Floy tag near the fish’s dorsal fin. The tags are typically orange or yellow in color and have a unique identification number.
If you catch a tagged cutthroat:
Dries:
West Side: PMD's size 16-20, X Caddis white (16), Firehole sparkle dun PMD (16) Royal Wolf 16, Elk Hair Caddis 14-16, Parachute Adams 14-16, PMD's 16-18. Chubby (10-14) East Side: Chubby Chernobyl (6-10), Elk Hair Caddis (12-16), Chubby Sally (10-12)
Nymphs:
Yellow, green and Orange soft hackles (16), Pheasant tails (14-16), Spanish Bullet ( 16-18), PMD Perdigons (16) Prince Nymph (16-18), (16-18) PMD Nymphs, Frenchie's (16-18) East Side: Stonefly Nymphs (4-10), Jig Prince (14-16),
Streamers:
Kreelux Minnow (8), Sparkle Minnow (8), Black/Olive woolly buggers, Sculpzilla Black (8)