| Route | Western Valleys Line |
| Section | near Park Jn to former Aberbeeg Jn |
| ELR Maps | Atlas , Interactive |
| Area Maps | Newport , Newport (West) , Machen , Newbridge |
| Extent | 0M 1660y to 14M 0475y • 13.327 miles • 21.447 km |
| Measured | 21.352 km (Δ -96m) ℹ️ Variation between reported and measured extents |
| Neighbours | BJR , EBW , GAE , NWN |
| NR Region | Wales & Western |
 | TRACKmaps Book 3 — Western & Wales |
🏢 Administrative Area
| Mileage | Country | Administrative Area |
|---|---|---|
| 0M 1660y to 3M 1440y | Wales | Newport |
| 3M 1441y to 14M 0475y | Wales | Caerphilly |
📍 Nearest Place and District
| Mileage | Nearest Place | District / County | Distance |
|---|---|---|---|
| 0M 1660y to 1M 0714y | Maes-glas | Newport | 306m - 967m |
| 1M 0715y to 1M 1022y | Gaer | Newport | 929m - 974m |
| 1M 1023y to 1M 1352y | Glasllwch | Newport | 817m - 919m |
| 1M 1353y to 2M 0406y | Bassaleg | Newport | 442m - 807m |
| 2M 0407y to 3M 0076y | High Cross | Newport | 63m - 846m |
| 3M 0077y to 4M 0494y | Rogerstone | Newport | 260m - 1147m |
| 4M 0495y to 4M 1374y | Ty-Sign | Caerphilly | 631m - 1139m |
| 4M 1375y to 5M 0824y | Pontymister | Caerphilly | 68m - 617m |
| 5M 0825y to 5M 1220y | Danygraig | Caerphilly | 354m - 473m |
| 5M 1221y to 6M 0516y | Risca | Caerphilly | 96m - 517m |
| 6M 0517y to 7M 0340y | Crosskeys | Caerphilly | 113m - 932m |
| 7M 0341y to 8M 0054y | Pontywaun | Caerphilly | 198m - 936m |
| 8M 0055y to 8M 1220y | Cwmcarn | Caerphilly | 123m - 676m |
| 8M 1221y to 9M 0186y | Abercarn | Caerphilly | 377m - 691m |
| 9M 0187y to 9M 0912y | West End | Caerphilly | 59m - 372m |
| 9M 0913y to 9M 1044y | Persondy | Caerphilly | 291m - 311m |
| 9M 1045y to 9M 1308y | High Meadow | Caerphilly | 235m - 284m |
| 9M 1309y to 10M 0428y | Celynon | Caerphilly | 116m - 497m |
| 10M 0429y to 10M 1264y | Newbridge | Caerphilly | 250m - 508m |
| 10M 1265y to 11M 0274y | Old Treowen | Caerphilly | 324m - 461m |
| 11M 0275y to 11M 1220y | Crumlin | Caerphilly | 72m - 432m |
| 11M 1221y to 11M 1396y | Treowen | Caerphilly | 412m - 512m |
| 11M 1397y to 11M 1418y | Rhiw | Caerphilly | 522m - 522m |
| 11M 1419y to 12M 1154y | Swffryd | Blaenau Gwent | 457m - 989m |
| 12M 1155y to 13M 0912y | Llanhilleth | Blaenau Gwent | 40m - 999m |
| 13M 0913y to 13M 1638y | Glandwr | Blaenau Gwent | 67m - 382m |
| 13M 1639y to 14M 0142y | Brynithel | Blaenau Gwent | 394m - 485m |
| 14M 0143y to 14M 0475y | Aberbeeg | Blaenau Gwent | 268m - 480m |
🏷️ Positional Accuracy Statistics
| Property | Count | Min | Max | Mean | Median | Std Dev |
|---|---|---|---|---|---|---|
| Linear Accuracy | 49 | -61m | 40m | -2m | -1m | 13m |
| Normalised Quarter Miles | 49 | 373y | 484y | 439y | 438y | 14y |
| Calibration Segment Length | 49 | 22y | 1760y | 479y | 440y | 230y |