Raven Rock is more of a Red River icon than it is a climbing Destination. On countless trips in the 80's and 90's people asked "what is that?" pointing upward, and for years I could not say much more than to give its name. Only years after climbing at the red did I ever climb on it. Many climbers never have. Notably, a few quality moderate lines escaped any ascents until the mid 1990's, but the crag seems, like fortress wall, to have remained primarily a trad wall and has not been bolted up.
The crag faces east and gets morning sun.
The most popular (a measured statement) climb at this cliff is "Nevermore, 5.9+" but there are other lines there that are recommended in the book. Beware, the cliff may lend to more adventure than security. The hanger-less bolts on "Nevermore" were total trash even 15 years ago.

Drive down Hwy 77 through town and through the Nada Tunnel and a few miles more, passing Military Wall and Left Flank to cross an old Iron Bridge. Park at a pull-off there and take your valuables with you. Cross the bridge back on foot and turn off on a river-side trail walking NW toward the obvious cliff in that direction. After a brief and casual walk, the trail will intercept an old rutted out road, more fit for a mountain bike than a car... Follow the road uphill (somewhat strenuous) until a trail leads up and left to the base of the cliff, arriving at the left side.