{
  "type": "FeatureCollection",
  "name": "Littoral Protocol — Argentine corridor",
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  "metadata": {
    "crs": "urn:ogc:def:crs:OGC:1.3:CRS84",
    "coordinate_order": "longitude, latitude",
    "project_boundary_feature": "feature_role=project_boundary",
    "station_count": 7,
    "method": "A 90 km geodesic working buffer around a hand-curated downstream spine, unioned with a 105 km Esteros del Ibera extension, then intersected with the Natural Earth Argentina polygon.",
    "precision_note": "Coordinates are rounded to six decimal places, but source and method accuracy are much coarser than that numerical representation."
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        "name": "Argentine Parana-Rio de la Plata-Samborombon littoral corridor",
        "status": "artistic_research_boundary",
        "country_filter": "Argentina only",
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        "connected_extension": "Esteros del Ibera",
        "connected_extension_buffer_km": 105,
        "northern_anchor": "Iguazu-Parana confluence / Puerto Iguazu",
        "hydrographic_endpoint": "Punta Rasa / Cabo San Antonio",
        "artistic_endpoint": "Las Toninas",
        "inclusion_rule": "A submission coordinate must fall inside this boundary. Sensitive ecological or cultural locations must be spatially generalized before submission.",
        "disclaimer": "Approximate project boundary for artistic participation and data validation. Not an administrative, legal, navigational, ecological-management, or scientific-survey boundary.",
        "boundary_source": "Natural Earth 1:10m Admin 0 Countries",
        "boundary_source_url": "https://github.com/nvkelso/natural-earth-vector",
        "generated": "2026-08-22"
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