Trail Ridge Road is the name for a stretch of U.S. Highway 34 that traverses Rocky Mountain National Park from Estes Park, Colorado in the east to Grand Lake, Colorado in the west. The road is also known as Trail Ridge Road/Beaver Meadow National Scenic Byway, Trail Ridge Road is closed during the winter, and often remains closed until late spring or early summer depending on the snowpack. It requires access to Rocky Mountain National Park even for local residents.