I can't remember what the name of the short film was but it involved a dragon in a cave filled with junk, and a little girl finds him by following traintracks, and then they end up traveling to this dragon party, and the ending of it was sad but I cannot remember the ending or the name of the cartoon. Please help!

YouTube - The Railway Dragon. (1989) Part 1. (http://www.youtube.com/watch?v=t-U-4e1skRs&feature=PlayList&p=87139DC2B3052C1D&index=0&playnext=1)