Jun 04, 2026

Yellowstone National Park

The Firehole and the Gibbon are fishing good, everything else is very muddy at the moment.

Floy Tags

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:

1. Record the tag number (photo or written) and release the fish unharmed.
2. Note the location the fish was caught.
3. Call or text 406-404-4877 and report the tag number and location of catch.
4. If the fish accidentally died, please include that detail in your report.