Interstate 90 remains closed to all westbound travel from St. Regis to the Idaho border because of a landslide. The Montana Department of Transportation reports that traffic is being detoured at St. Regis, mile marker 33. The landslide is at mile marker 6.5. The detour at St. Regis takes Idaho-bound travelers onto Montana 135, then to Highway 200 north to the Sandpoint area. A spokeswoman for the Montana DOT said westbound I-90 was still closed as of 5:45 a.m. Monday. She did not have an expected time of reopening. Crews continue working to clear the slide/Missoulian.