Where is the beer located in this park?

Magic kingdom sitdown restaurants.

They have it at all the sit down dining establishments, but they also have it at Gaston's Tavern. They used to not serve any alcohol at Magic Kingdom, but that has changed. Gaston's Tavern is not a sit down establishment.

No alcoholic beverages are sold in Disney parks.

Beer is only sold at Table Service restaurants in the Magic Kingdom. It is not sold at any Quick or Counter service establishments.

At Magic Kingdom, they sale beer And wine at the restaurantes such as Gaston's Tavern... Liberty Tree Tavern And Tony's Town Square Restaurante....

I couldn't find any when I was there. I guess beer, Mickey mouse and dad's aren't a great combination

Not in this park. That's how they keep the "magic" in Magic Kingdom.