The Misty Mountains were a huge and dangerous mountain chain that divided the lands of Eriador and Rhovanion. Its length was about 700 miles and some of the peaks were as high as 18,000 feet. There were only a few passes, one of them the High Pass which the company decided to use but which was now inhabited by Orcs. These imprisoned the Dwarves and Bilbo, who were then rescued by Gandalf. But Bilbo got lost and there, in the deepest root of the mountains, he surprisingly found a golden ring and met a strange, nasty creature by the name of Gollum.