What is the name of tge mountain where smaug protects his stolen treasure in the hobbit?

In "The Hobbit," Smaug protects his stolen treasure in the Lonely Mountain, also known as Erebor. This mountain serves as the stronghold of the Dwarves and is the central location for much of the story's conflict. The treasure hoard, accumulated over years, is a significant element that drives the plot and the characters' motivations.