A. T. Ascent To Raven Rock, Md, 06/06/09 For northbounders, from Raven Rock Road, MD Route 491, the A. T. begins a 600 foot ascent from approximately 1060 feet elevation to 1660 feet elevation. There are several switchbacks, and at times the climb can be steep, but there are several interesting rock formations, and at least one great vantage point. This is a view of the A. T. looking north from Raven Rock Road. Tenderfoot Dave can be seen beginning the ascent. SoBo 1129.8. NoBo 1048.5.