MT 35 begins within the Flathead Indian Reservation, in the eastern outskirts of Polson, at an intersection with US 93.

After a few miles, the road takes an abrupt turn northwards as it meets the foothills of the Mission Mountains.

Passing Flathead Lake's East Bay, it then forms the eastern boundary of the community of Finley Point.

Meeting Skidoo Bay of the lake, MT 35 is then squeezed between the shoreline on its left and the mountain range on its right and is forced by the topography to wind its way northwards between the two.

MT 35 heads west from this junction and crosses the Flathead River into Evergreen, and intersects with Helena Flats Road and S-317 just before reaching its northern terminus at US 2 soon afterwards; traffic travelling straight-ahead from this point moves onto US 2 westbound towards Kalispell.