In 1887, John Bartholomew's Gazetteer of the British Isles described Carmarthenshire like this:
Carmarthenshire, a maritime co. of S. Wales, and the largest of all the Welsh counties; is bounded N. by Cardiganshire, E. by Brecknockshire and Glamorgan, S. by the Bristol Channel, and W. by Pembrokeshire; greatest length, NE. and SW., 50 miles; greatest breadth, E. and W., 42 miles; the coast, which is marshy, measures about 35 miles; area, 594,405 ac.; pop. 124,864. The surface generally is upland or mountainous, much of it being waste. The Black Mountains rise on the NE. border, the chief summit, Carmarthen Van, having an alt. ...
of 2596 ft. The vale of the river Towy extends in length about 30 miles NE. and SW. through the middle of the co. The uplands consist chiefly of slate or limestone; old red sandstone occurs about the estuary of the Towy; coal and ironstone are worked in the SE. Good crops of oats, barley, and wheat are produced in the valleys, but the principal industry is stock-raising. (For agricultural statistics, see Appendix.) The fisheries are of some importance. The co. comprises 5 hundreds, 3 commots, 81 pars., with part of 1 other, the Carmarthen Boroughs (Carmarthen and Llanelly -- 1 member), and the mun. bors. of Carmarthen and Llandovery. It is entirely in the diocese of St David's. For parliamentary purposes it is divided into 2 divisions, viz., Eastern and Western, 1 member for each division.
For an overview of how the county has changed, please see our redistricted information for the modern of Carmarthenshire -- but you should check this covers the area you are interested in.
GB Historical GIS / University of Portsmouth, History of Carmarthenshire | Map and description for the county, A Vision of Britain through Time.
Date accessed: 23rd May 2013
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Carmarthenshire".