At the Blue Mountain Quarry there is a lot of work to do! So all the engines work together to get everything done and make sure they are really useful! Sing along .\r<br>\r<br>Learn about the Blue Mountain Quarry and the mysterious engines who work there with Thomas & Friends! Find more sing alongs with your favorite engine .\r<br>\r<br>Follow on Twitter @melshiri: Visit Roll Along Thomas creators YouTube: Roll Along Thomas: The .\r<br>\r<br>Working Together, Blue Mountain Quarry Song if you will, sped up. Thomas & Friends is owned and copyright of HiT Entertainment Limited.
