Fishing is allowed in the refuge (in accordance with the Flathead Indian Reservation Fishing, Bird Hunting and Recreation Regulations of CSKT and the MTFWP), however NO hunting or trapping at any times is allowed.
All anglers must have in their immediate possession a Flathead Reservation Conservation permit with a fishing stamp or CSKT Tribal Identification Card. As with much of the geocaching on the reservation, geocachers should obtain and carry a rec permit as well just to cover all your bases. They are good for a year from the first of March to the following February 28th and can be bought from the Walmart in Polson, Ronan Sports & Western in Ronan, as well as several other locations within the Valley.
Please check out the related webpage under the link above near the head of the cache page.