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 |
| Birch Rock Siding (L.M.S.) | Map BV199 | SRS diagram not available | |
| S1989 | Clydach-on-Tawe South No. 1 (L.M.S.) | Map CD199 SN687006 | SRS diagram not available |
| S1989 | Clydach-on-Tawe South No. 2 (L.M.S.) | Map CE200 SN689008 | SRS diagram not available |
| S2120 | Glynhir Siding | Map BV202 SN596054 | SRS diagram P156 |
| S2167 | Graig Merthyr Colliery Siding | Map BV199 SN597023 | SRS diagram W43/22 |
| S2166 | Grovesend Colliery Loop | Map BV199 SN590024 | SRS diagram P51 |
| S2116 | Hendy Junction | Map BU200 SN581032 | SRS diagram D472 |
| S2114 | Llangennech Station | Map BT199 SN564012 | SRS diagram D110 |
| S1855 | Llangyfelach | Map BZ199 SS638995 | SRS diagram not available |
| S2115 | Morlais Junction | Map BT200 SN574024 | Click here for Dog chart and mechanical locking table. SRS diagram P51 |
| S2121 | Pantyffynnon South | Map BX206 SN622107 | SRS diagram P156 |
| S2168 | Pont-Lliw | Map BW199 SN609010 | SRS diagram not available |
| S2025 | Pontardulais (L.M.S.) | Map BV200 SN590033 | SRS diagram not available |
| S2119 | Pontardulais Junction North | Map BV201 SN592047 | SRS diagram W44/03 |
| S2118 | Pontardulais Junction Station | Map BV201 SN588040 | SRS diagram D472 |
| Prices are shown here. | |||