This pack contains 20 mountain trees (60 including all LOD-stages). Textures for the trees are combined into 3 atlas textures. This way you will save a lot of draw calls (a scene with all 20 trees renders with only 44 draw calls in Unity).
Unity’s ambient-occlusion nature shaders are applied and additional collidable prefabs are available.
Original_Link: https://assetstore.unity.com/packages/3d/vegetation/trees/mountain-vegetation-3710