Terrain Starter Pack was made more of as a task to primarily make a procedural material for landscapes, that can switch between grass, rock and snow as per the angle and height of a vertex. A lot of other props. like trees, rocks, grass meshes, were added only later, when the procedural material was finally done.

Once the meshes were added, I even experimented a bit into adding snow effects on meshes as per the height of a mesh's vertices. So for example, a tree or a rock, on a particular height in the world, will look like its usual self, while as it goes higher, snow effect will start appearing on top of its actual material.

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The final pack contains the landscape procedural material, trees, grass meshes, rocks, and of course some tileable textures.

 It is compatible with the latest UE4 updates and is available on the UE4 Marketplace here: Terrain Starter Pack