Winter Zone - Mountains is a pack of assets availaible soon from Unity Assets Store.
Pack contains 48 prefabs:
6 far mountains as mesh - 8k, 16k, 32k, 64k (tris) versions for each,
6 mountains as unity terrains - 2k and 4k heightmaps and splatmaps for each,
6 unity terrains - 2k and 4k heightmaps and splatmaps for each,
2k snow, rock and ice textures,
10 demo scenes.
Winter Zone Mini is a free pack of assets availaible from Unity Assets Store.
Pack contains far mesh terrains, unity terrains, textures, weather fx, audio clips, heightmaps, splatmaps and more.