Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Forest Map Free.
Forest Map v22.214.171.124 (Latest version)
“CatStudio – Map Series”
Flexible and easy to use.
It’s possible to generate a high quality Forest Map by combination of parts.
– 32 types of 3D models (.fbx).
– Almost all 3D models have LOD.
– 76 Map Parts (.prefab) that can create maps immediately.
– High quality texture, normal map
– Object collision, wall collision, Partition collision
Demo : View Demo
Video : View Video
Website：Forest Map pages
It offers a “GridMap for FREE” for operation check.
So you can check the collision, etc., who are considering the placement and operation of character and car, please use.
GridMap for FREE