{
    "feature": "minecraft:frozen_river_disk",
    "placement": [
        {
            "type": "minecraft:count",
            "count": 75
        },
        {
            "type": "minecraft:in_square"
        },
        {
            "type": "minecraft:height_range",
            "height": {
                "type": "minecraft:uniform",
                "max_inclusive": {
                    "absolute": 1024
                },
                "min_inclusive": {
                    "absolute": 63
                }
            }
        },
        {
            "type": "minecraft:heightmap",
            "heightmap": "WORLD_SURFACE_WG"
        },
        {
            "type": "minecraft:biome"
        }
    ]
}