CLOSED for the season. Following guidance from the CDC and recommendations from state and local public health in consultation with NPS Public Health Service officers, the Carbon River Ranger Station is temporarily closed. More information on the Alerts page. Located on the Carbon River Road 5.5 miles east of the Mowich Lake (SR165) junction. Open year-round. The Carbon River Entrance is open but the road within the park boundary is limited to foot and bicycle traffic. Check the road status webpage or at MountRainierNPS on Twitter prior to coming to the park as road conditions are subject to change (account not required to view). The road is closed to vehicles beyond the entrance. Bicycle and pedestrian traffic is permitted beyond the entrance.