{
    "type": "minecraft:jigsaw",
    "biomes": "minecraft:dripstone_caves",
    "step": "underground_decoration",
    "terrain_adaptation": "beard_thin", 
    "spawn_overrides": {},
    "start_pool": "hopo:portal_dripstone",
    "size": 1,  
    "start_height": {
    "type": "minecraft:uniform",
    "min_inclusive": {
      "absolute": -20
    },
    "max_inclusive": {
      "absolute": 11
    }
  },
  "max_distance_from_center": 100,
  "use_expansion_hack": false
}