The Kardashian Klan gathered together at a private residence in Calabasas, CA to celebrate Baby Mason’s 1st birthday last month.

All of the Kardashians, including mom Kourtney and dad Scott Disick, aunts Kim & Khloe, along with grandparents Kris and Bruce Jenner, attended the backyard party, which featured a big cake made into the shape of a train, kiddie rides and a real live petting zoo complete with goats and little piglets!

Check out 20+ pics below!


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