Snowy Crevice

With the Snowy Flatlands leading to a slab of rock, leading to a towering second level of earth, horses from the past have discovered that an opening (large enough to fit most horses) is created -- a crevice, if you will. Inside of this crevice is a warmer location, which is used for when the snows are dangerous, and horses need shelter. The area inside is dark, but warm. It is not uncommon for her herd to shelter here, for the chamber inside is rather large, and lowers well underground.