Milner Pass is a high mountain pass at an elevation of 3.279m (10,758ft) above the sea level, located along the boundary between Larimer and Grand counties in the north-central region of the U.S. state of Colorado, in USA.
Located in the Rocky Mountain National Park, the pass is traversed by the Trail Ridge Road, the highest continuous paved road in the country. The road, also known as Trail Ridge Road/Beaver Meadow National Scenic Byway, cuts through Rocky Mountain National Park between the towns of Estes Park and Grand Lake, and is one of the best ways to see the Continental Divide as it cuts through Colorado. The name "Trail Ridge Road" derives from its proximity to historic pathways used by native peoples to cross the Rocky Mountains. It traverses Rocky Mountain National Park from Estes Park, Colorado in the east to Grand Lake, Colorado in the west. Construction began in 1929 and was completed to Fall River Pass by July 1932, with a maximum grade of 7%.
Avalanches and heavy snowfalls can sometimes block some sections of the road and can be extremely dangerous due to frequent patches of ice. Trail Ridge Road is closed in winter (usually October - early June), and can occasionally close during bad weather in the summer. The pass 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. The pass is named for T.J. Milner, a railroad promoter who first surveyed the area. Come prepared for every type of weather. It’s common, even in the summer, to encounter swift weather changes and rain, thunderstorms, lightning, and wind.