Boulder lived high in the mountains of Sodor. When Thumper shook the mountain during construction of a new quarry, Boulder fell onto the tracks. He chased Rusty, Skarloey, Rheneas and Percy down the mountain. For safety, Sir Topham Hatt moved him to a new location. Rusty thinks that Boulder sometimes looks up and sighs at the mountain where he once lived.
The Boulder is part of the magical world of Thomas & Friends. The engines all work and play together on the Island of Sodor. While they are doing their very useful work, they learn important lessons about friendship and getting along. Many of the characters are available to purchase as part of different toy brands, including the timeless Thomas & Friends Wooden Railway Series. You can purchase Thomas and many of his engine friends, as well as wooden track, buildings, destinations and sets from the simple oval to the Deluxe Tidmouth Sheds set. Many engines are available on a limited basis and are retired, so check ebay or other online auction sites for your favorites if you can't find them here or in a store near you.