Most Norwegian farms have a summer farm in a nearby mountain.
The summer farm let farmers utilize the vast mountain-areas which are uninhabitable in winter, but rich and fertile in summer. With a few exceptions nobody can own land in the mountains, but farms traditionally have a right to establish summer farms as long as the land is used for agricultural purposes. The main purpose of the summer farm was to serve as a base for the farm animals that were sent to graze in the mountains, but many farms had areas that were cultivated as well. Since the animals would give milk, and the distances involved to the main farm frequently made it impossible to transport perishable products, the summer farm had to have many of the same facilities for dairy production as the main farm. The same goes for storage, a lot of the produce like hay and wood could only be transported back to the main farm in winter, when it was possible to access roadless areas by horse and sleigh.