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 |
| S2080 | Abergwili Junction | Map BE57 SN430211 | SRS diagram D23 |
| S2089 | Bryn Teify | Map BF61 SN453391 | SRS diagram D99 |
| S2078 | Carmarthen Crossing | Map BE56 SN414199 | SRS diagram P55 |
| S2079 | Carmarthen Goods Yard | Map BE56 SN421205 | SRS diagram D23 |
| Carmarthen Valley Junction | Map BK57 SN631218 | SRS diagram not available | |
| S2082 | Conwil | Map BD58 SN386263 | SRS diagram D51 |
| S2132 | Ffairfach | Map BK57 SN629213 | SRS diagram D40 |
| S2228 | Golden Grove | Map BJ57 SN590210 | SRS diagram not available |
| S2227 | Llandilo Bridge | Map BK57 SN628215 | SRS diagram not available |
| Llandilo North | Map BL58 SN634228 | SRS diagram not available | |
| S2133 | Llandilo South | Map BL58 SN634226 | SRS diagram P139 (Llandilo 1955) |
| S2218 | Llandovery North | Map BN60 SN764346 | SRS diagram B142 (No. 1) |
| S2217 | Llandovery South | Map BN60 SN761342 | SRS diagram S429 (No. 2) |
| S2086 | Llandyssul | Map BD61 SN412400 | SRS diagram not available |
| S2136 | Llangadock | Map BM59 SN714310 | SRS diagram P139 |
| S2083 | Llanpumpsaint | Map BE59 SN415296 | SRS diagram D51 |
| S2047 | Llanstephan Crossing | Map BD56 SN400194 | SRS diagram D154 (1950), S817 (1972) |
| S2216 | Llanwrda | Map BN60 SN740326 | SRS diagram S801 |
| S2090 | Maesycrugiau | Map BF62 SN474406 | SRS diagram D99 |
| S2231 | Nantgaredig | Map BG57 SN494208 | SRS diagram not available |
| S2084 | Pencader | Map BF60 SN444360 | SRS diagram P250 |
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