{
 "type": "FeatureCollection",
 "note": "Per-sheet polynomial fits (the map is four separately registered sheets); residuals approximate at 0.45 km/px.",
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  },
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    "type": "Point",
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  },
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    "type": "Point",
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  },
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    "type": "Point",
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  },
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  },
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    "type": "Point",
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  },
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    "type": "Point",
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  },
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   "geometry": {
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  },
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  },
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  },
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  },
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  },
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