RISC OSMap of G.W. SignalboxesRISC OS
http://www.svrsig.org/gwmap/GWMap.htm
Sxxxx numberSignal Box nameView on map squareOther information including SRS diagram number
S3277 Bontnewydd Map BN82
SH770201 		SRS diagram D163
S3278 Dolgelley Station Map BM82
SH729180 		SRS diagram not yet available
S3276 Drws-y-Nant Map BO83
SH818229 		SRS diagram D163
S3275 Garneddwyn Loop Map BP83
SH850270 		SRS diagram not available
S3272 Llanuwchllyn Map BQ83
SH882301 		SRS diagram S832
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