| Route | Gaerwen to Amlwch |
| Remarks | Understood to be disused |
| ELR Maps | Atlas , Interactive |
| Area Maps | Gaerwen , Amlwch |
| Extent | 0M -040y to 18M 0997y • 18.589 miles • 29.916 km |
| Measured | 29.989 km (Δ +73m) ℹ️ Variation between reported and measured extents |
| Neighbours | CNH3 |
| NR Region | Wales & Western |
 | TRACKmaps Book 3 — Western & Wales |
🏢 Administrative Area
| Mileage | Country | Administrative Area |
|---|---|---|
| 0M -040y to 18M 0997y | Wales | Anglesey |
📍 Nearest Place and District
| Mileage | Nearest Place | District / County | Distance |
|---|---|---|---|
| 0M -040y to 0M 0340y | Llanddaniel Fab | Isle of Anglesey | 981m - 1266m |
| 0M 0341y to 1M 1550y | Gaerwen | Isle of Anglesey | 1230m - 1697m |
| 1M 1551y to 3M 0516y | Pentre Berw | Isle of Anglesey | 606m - 1760m |
| 3M 0517y to 5M 0560y | Llangefni | Isle of Anglesey | 74m - 1769m |
| 5M 0561y to 6M 0120y | Rhosmeirch | Isle of Anglesey | 1165m - 1351m |
| 6M 0121y to 8M 0714y | Llangwyllog | Isle of Anglesey | 33m - 2217m |
| 8M 0715y to 9M 0054y | Llynfaes | Isle of Anglesey | 2227m - 2659m |
| 9M 0055y to 9M 0142y | Glan-yr-afon | Isle of Anglesey | 2675m - 2715m |
| 9M 0143y to 10M 0142y | Peniel | Isle of Anglesey | 1609m - 2717m |
| 10M 0143y to 11M 1110y | Llanerchymedd | Isle of Anglesey | 306m - 1596m |
| 11M 1111y to 13M 0340y | Ceidio | Isle of Anglesey | 660m - 1772m |
| 13M 0341y to 13M 0516y | Rhosybol | Isle of Anglesey | 1762m - 1781m |
| 13M 0517y to 15M 0868y | Rhosgoch | Isle of Anglesey | 608m - 2081m |
| 15M 0869y to 15M 1220y | Bodewryd | Isle of Anglesey | 2095m - 2256m |
| 15M 1221y to 16M 1638y | Pentrefelin | Isle of Anglesey | 1187m - 2255m |
| 16M 1639y to 17M 1704y | Amlwch | Isle of Anglesey | 211m - 1178m |
| 17M 1705y to 18M 0997y | Amlwch Port | Isle of Anglesey | 368m - 878m |
🏷️ Positional Accuracy Statistics
| Property | Count | Min | Max | Mean | Median | Std Dev |
|---|---|---|---|---|---|---|
| Linear Accuracy | 42 | -19m | 21m | 2m | 4m | 11m |
| Normalised Quarter Miles | 42 | 424y | 461y | 442y | 443y | 8y |
| Calibration Segment Length | 42 | 40y | 1760y | 779y | 440y | 503y |