Bilbo and Thorin's company travelled to the Lonely Mountain to regain the treasure Smaug had stolen.
The mountain's Sindarin name, which has the same meaning, is Erebor.
... who are 65 years of age or older. The median age is 36 years. For every 100 females there are 96.3 males. For every 100 females age 18 and over, there are 91.6 ...