{
  "type": "minecraft:range_choice",
  "input": "tectonic:underground_river/parameters",
  "min_inclusive": 0.9,
  "max_exclusive": 1.1,
  "when_in_range": 1,
  "when_out_of_range": {
    "type": "minecraft:noise",
    "noise": "minecraft:aquifer_fluid_level_floodedness",
    "xz_scale": 1.0,
    "y_scale": 0.67
  }
}