The mountain colony of Everwinter has never been self-sufficient. Since its founding, there have been supply trains running to and from its frozen boundaries, until recently. The ponies who supplied the colony with food, growing concerned over the lack of contact, send a team to see what has happened to the cold-weather colony. What they find is quite a surprise.
A/N: I noticed in Winter Wrap Up that Applejack states that their food stores are running low for the winter, making me suspect that they have not discovered the concept of Greenhouses yet. I decided to write this story, documenting the advent of the Greenhouse in Equestria. :)