Here you go Brother man. I always take a boat so Im know expert on this matter. But a permit is cheap and then there are No worries.
http://www.colvilletribes.com/final_non_member_fishing_regulations.phpLICENSE PROVISIONAll non-members on the Colville Indian Reservation MUST
have in their possession a valid Colville Indian Reservation
fishing permit to fish in all waters open to non-members on the
Colville Indian Reservation. In addition: 1) A Colville Indian
Reservation Fishing Permit shall be required when fishing
from the reservation shoreline (see general definitions, page
4) of the following boundary waters: Crawfish Lake, Lake
Pateros (Wells Pool), Washburn Pond and the Okanogan
River; 2) When fishing Rufus Woods Reservoir from a boat
or at one of the Designated Fishing Areas, either a Tribal
Permit or State License shall be acceptable. A Tribal Permit
is required when fishing from the north shore (Okanogan
County side) on Colville Reservation lands other than the
Designated Fishing Areas. 3) When fishing Lake Roosevelt,
non-member fishermen that traverse the Colville Indian
Reservation to obtain fishing access on the west shore of
Lake Roosevelt, are also required to possess a Colville
Indian Reservation Fishing Permit; 4) For purposes of this
fishing license provision, Grand Coulee Dam structure will
not be considered as reservation shoreline; 5) For state
licensing requirements on boundary waters, please contact
the Washington Department of Fish and Wildlife at (509)
456-4082, (509) 754-4624 or (360) 902-2464