Map of G.W. Signalboxeshttp://www.svrsig.org/gwmap/GWMap.htm
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| Sxxxx number | Signal Box name | View on map square | Other information including SRS diagram number |
| S3243 | Afon Wen | Map BF86 SH445371 | SRS diagram P316 (1916, c. 1950) |
| S3242 | Criccieth | Map BG86 SH496380 | SRS diagram not available |
| S3238 | Portmadoc | Map BI86 SH565392 | SRS diagram not available |
| S3246 | Pwllheli East | Map BD86 SH386355 | SRS diagram not yet available |
| S3247 | Pwllheli West | Map BD85 SH375350 | SRS diagram D531 (1909, c. 1950) |
| Prices are shown here. | |||