[
  {
    "type": "mapgen",
    "update_mapgen_id": "mx_clearcut",
    "object": { "ter_furn_transforms": { " ": { "transform": "clearcut" } } }
  },
  {
    "type": "ter_furn_transform",
    "id": "clearcut",
    "terrain": [ { "result": "t_stump", "valid_flags": [ "TREE", "YOUNG" ] } ]
  }
]
