{
  "title": "Dromahair–Ballintogher–Collooney approximate historical railway corridor",
  "source": {
    "author": "Edward Stanford",
    "date": 1904,
    "title": "Composite: Ireland.",
    "catalogue": "https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~314681~90083599:Composite--Ireland-",
    "download": "https://www.davidrumsey.com/rumsey/download.pl?image=/179/0949046.jp2",
    "cropLocal": "/sources/stanford-1904-first-segment.jpg",
    "masterSha256": "9a0a0a860bfe382217a003dec0f8f55ad989238bc4e970d1e33d1941ccd11b3e",
    "masterSize": [11028, 13752],
    "cropVerifiedOn": "2026-09-30",
    "provenanceNotes": "/sources/irish-journey-geography-notes.md",
    "cropOriginFullPixels": [
      4250,
      4100
    ],
    "cropSize": [
      1100,
      650
    ]
  },
  "method": "Manually traced visible railway bends in the native scan crop. One affine transformation fits three approximate historical station anchors. This preserves map curvature; station pixel locations are manually interpreted. Dromahair anchor is an approximate conversion from government ITM coordinates using nearby geographic reference, not a formal CRS transformation. Other anchors from sources below. Regional historical visualization only: expect hundreds of metres to perhaps 1 km of local uncertainty. Rounded decimals are storage precision, not measured accuracy.",
  "anchors": [
    {
      "name": "Dromahair historic station area",
      "pixel": [
        749,
        280
      ],
      "geo": [
        -8.2963,
        54.2209
      ],
      "source": "https://www.leitrim.ie/council/services/planning-building/forward-planning-development/leitrim-county-development-plan/4-volume-iv-record-of-protected-structures-copy.pdf",
      "detail": "ITM580678,830267 goods shed; approximate geographic conversion."
    },
    {
      "name": "Ballintogher historic station",
      "pixel": [
        615,
        350
      ],
      "geo": [
        -8.360371,
        54.19632
      ],
      "source": "https://www.wikidata.org/wiki/Q110941578",
      "detail": "Reference URL includes GeoHive historic25inch coordinate54.196320417532334,-8.360371078343626. Wikidata display rounds to54.2,-8.36; used detailed source URL coordinate."
    },
    {
      "name": "Collooney SLNCR station area",
      "pixel": [
        377,
        361
      ],
      "geo": [
        -8.48356,
        54.18672
      ],
      "source": "https://www.geograph.org.uk/photo/8394272",
      "detail": "Photographer subject location54.18672,-8.48356, contemporary identification of station site."
    }
  ],
  "pixelTraceInCrop": [
    [
      749,
      280
    ],
    [
      726,
      285
    ],
    [
      703,
      292
    ],
    [
      682,
      302
    ],
    [
      660,
      312
    ],
    [
      645,
      324
    ],
    [
      634,
      335
    ],
    [
      620,
      346
    ],
    [
      615,
      350
    ],
    [
      592,
      351
    ],
    [
      565,
      350
    ],
    [
      533,
      352
    ],
    [
      500,
      353
    ],
    [
      480,
      357
    ],
    [
      450,
      358
    ],
    [
      422,
      362
    ],
    [
      395,
      363
    ],
    [
      377,
      361
    ]
  ],
  "pixelTraceInFull": [
    [
      4999,
      4380
    ],
    [
      4976,
      4385
    ],
    [
      4953,
      4392
    ],
    [
      4932,
      4402
    ],
    [
      4910,
      4412
    ],
    [
      4895,
      4424
    ],
    [
      4884,
      4435
    ],
    [
      4870,
      4446
    ],
    [
      4865,
      4450
    ],
    [
      4842,
      4451
    ],
    [
      4815,
      4450
    ],
    [
      4783,
      4452
    ],
    [
      4750,
      4453
    ],
    [
      4730,
      4457
    ],
    [
      4700,
      4458
    ],
    [
      4672,
      4462
    ],
    [
      4645,
      4463
    ],
    [
      4627,
      4461
    ]
  ],
  "geometry": {
    "type": "LineString",
    "coordinates": [
      [
        -8.2963,
        54.2209
      ],
      [
        -8.30788,
        54.21879
      ],
      [
        -8.31929,
        54.21608
      ],
      [
        -8.32941,
        54.21252
      ],
      [
        -8.34006,
        54.20893
      ],
      [
        -8.34688,
        54.20493
      ],
      [
        -8.35171,
        54.20133
      ],
      [
        -8.3581,
        54.19765
      ],
      [
        -8.36037,
        54.19632
      ],
      [
        -8.37228,
        54.19541
      ],
      [
        -8.38644,
        54.195
      ],
      [
        -8.40296,
        54.19355
      ],
      [
        -8.42009,
        54.19238
      ],
      [
        -8.43018,
        54.19065
      ],
      [
        -8.44574,
        54.18955
      ],
      [
        -8.46001,
        54.18761
      ],
      [
        -8.47401,
        54.1866
      ],
      [
        -8.48356,
        54.18672
      ]
    ]
  },
  "cautions": [
    "The map establishes infrastructure, not the McPadden family's actual itinerary or a 1904 train schedule.",
    "Collooney had separate company stations. Endpoint represents former SLNCR station area, not proof of a particular interchange movement.",
    "Do not extend this local affine transformation to all Ireland.",
    "Southward possible corridor is visually verified separately but has not been traced geographically."
  ],
  "reuse": {
    "credit": "David Rumsey Map Collection, David Rumsey Map Center, Stanford University Libraries",
    "policy": "https://www.davidrumsey.com/about/copyright-and-permissions",
    "license": "https://creativecommons.org/licenses/by-nc-sa/3.0/",
    "detail": "Dedicated policy allows reproduction without charge in personal use and publications and requires permission for standalone facsimiles for sale. It also links CC BY-NC-SA3.0. For a noncommercial genealogy Site, credit source, link license, identify crop/trace modifications."
  }
}