Auto Road and The Cog let you reach for the top Historic picture of the Cog Railway. Trains continue to climb Mt. Washington. Choose Which Way to Challenge Mount Washington! Mount Washington is very high; it is the tallest peak in America's North East. Hiking, running, biking, driving and even taking a Cog Rail ride up the 6,288 ft slope feels like an act of defying the force of gravity. Every spring and summer for the last 150 years world travellers have come to the mountain known as Agiocochook ( Home of the Great Spirit) to do just that. The Mountain is located in the Presidential Range of the White Mountains , in Coos County, New Hampshire . Mount Washington is one of the most prominent peaks in the country. There are many ways to get to the summit, the two most popular are the Cog and the Auto Road , and there are events throughout the late spring and summer to help motivate people to use them to reach for the top. This is the 150 th anniversary o