Sxxxx number | Signal Box name | View on map square | Other information including SRS diagram number |
S3284 | Arenig | Map BQ86 SH831392 | SRS diagram P124 |
S3282 | Bala | Map BS84 SH930362 | SRS diagram D241 |
S3270 | Bala Junction | Map BS84 SH937355 | SRS diagram D182 |
S3285 | Cwm Prysor | Map BP86 SH791384 | SRS diagram S807 |
S3283 | Frongoch | Map BR85 SH903391 | SRS diagram D241 |
S3287 | Trawsfynydd | Map BO87 SH714360 | SRS diagram P124 |
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