Railroad Ridge is a high mountain ridge at an elevation of 3.180m (10,433ft) above the sea level located in Custer County, in central Idaho, in USA. It’s said to be the highest road accessible to full-size vehicles in Idaho.
Tucked away in central Idaho’s White Cloud Mountains, the road to the summit is very challenging. It’s called FR 669. High clearance 4WD vehicles required. It is truly one of those places that is impossible to describe, one needs to venture up on their own for their own experience. The road is tough. However, the views at the top make it so completely worth it. The road to the summit is intense and only vehicles with high clearance four-wheel-drive are recommended. People with a fear of heights might want to stay away.
Remember this is a mountainous area, climbing up a high mountain, with a notorius absence of oxygen. Altitude and extreme weather are always a factor. The intense track is very narrow with almost zero pullouts and follows switchbacks up to the crest of the ridge. The drive tests the skills and courage of even the most experienced drivers. Although this journey may not suit everyone, it's certainly a journey you'll never forget.
The track climbs up from 7,200 feet to 10,600 feet, 3,400 feet of gain over just a few miles of steep road. Definitely don't attempt this road in severe weather conditions since avalanches, heavy snowfall, and landslides are known to occur at any time. It’s a very narrow road with very few pullouts. You'll definitely want to take it nice and slow to ensure you don't drive over any sharp rocks or large dips. The views at the top make it so completely worth it. On a clear day, you'll be able to see for miles upon miles.