{
  "type": "minecraft:range_choice",
  "input": "tectonic:underground_river/parameters",
  "min_inclusive": 0.9,
  "max_exclusive": 1.1,
  "when_in_range": {
    "type": "minecraft:range_choice",
    "input": "minecraft:y",
    "min_inclusive": 64,
    "max_exclusive": 72,
    "when_in_range": {
      "type": "minecraft:noise",
      "noise": "minecraft:aquifer_barrier",
      "xz_scale": 1.0,
      "y_scale": 0.5
    },
    "when_out_of_range": -1
  },
  "when_out_of_range": {
    "type": "minecraft:noise",
    "noise": "minecraft:aquifer_barrier",
    "xz_scale": 1.0,
    "y_scale": 0.5
  }
}
