This detailed and busy map covers the southern part of Merthyr Tydfil, with coverage from the station southward to Cyfarthfa Crossing and Glyn-dyrys Pond.
Features include southern part of town centre, St Tydfil's church, Taff Vale Goods Station, Rhyd-y-car, River Taff, railway approaches from the south incl GWR Merthyr Branch, Taff Vale Railway, Dowlais Railway, Cwm Pit Railway, numerous mineral railways, old quarries and pits, Cae-Draw, Twyn-yr-odyn, Ynys-fach Iron Works (disused) etc. A commercial directory, entries A-E is included on the reverse.
This map links up with sheet 12.01 Merthyr Tydfil North to the north.