{
  "$schema": "https://proj.org/schemas/v0.2/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "Carthage (Paris) / Tunisia Mining Grid",
  "base_crs": {
    "name": "Carthage (Paris)",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "Carthage (Paris)",
      "ellipsoid": {
        "name": "Clarke 1880 (IGN)",
        "semi_major_axis": 6378249.2,
        "semi_minor_axis": 6356515
      },
      "prime_meridian": {
        "name": "Paris",
        "longitude": {
          "value": 2.5969213,
          "unit": {
            "type": "AngularUnit",
            "name": "grad",
            "conversion_factor": 0.0157079632679489
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        }
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    },
    "coordinate_system": {
      "subtype": "ellipsoidal",
      "axis": [
        {
          "name": "Geodetic latitude",
          "abbreviation": "Lat",
          "direction": "north",
          "unit": {
            "type": "AngularUnit",
            "name": "grad",
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        },
        {
          "name": "Geodetic longitude",
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          "direction": "east",
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        }
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    "id": {
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  },
  "conversion": {
    "name": "Tunisia Mining Grid",
    "method": {
      "name": "Tunisia Mining Grid",
      "id": {
        "authority": "EPSG",
        "code": 9816
      }
    },
    "parameters": [
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        "name": "Latitude of false origin",
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        "unit": {
          "type": "AngularUnit",
          "name": "grad",
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        }
      },
      {
        "name": "Longitude of false origin",
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      },
      {
        "name": "Easting at false origin",
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        "unit": {
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          "name": "kilometre",
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        },
        "id": {
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      },
      {
        "name": "Northing at false origin",
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          "type": "LinearUnit",
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        },
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          "code": 8827
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  "coordinate_system": {
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        "name": "Easting",
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        "direction": "east",
        "unit": {
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      {
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        "unit": {
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  "area": "Tunisia - onshore",
  "bbox": {
    "south_latitude": 30.23,
    "west_longitude": 7.49,
    "north_latitude": 37.4,
    "east_longitude": 11.59
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  "id": {
    "authority": "EPSG",
    "code": 22300
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}