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 - Mountains details:
6 Mesh Mountains (fbx) (200m x 200m)
8k, 16k, 32k, 64k (tris) versions for each
diffuse textures 4096x4096
normalmaps 4096x4096
6 Mountains based on Unity Terrains (500m x 500m)
6 heightmaps 2049x2049 and 4097x4097
6 splatmaps 2049x2049 and 4097x4097
6 Unity Terrains (500m x 500m)
6 heightmaps 2049x2049 and 4097x4097
6 splatmaps 2049x2049 and 4097x4097
8 rock textures, 4 snow textures and 2 ice textures (2k)