In this letter regarding the Bridgend Tramroad Bill Iolo's detailed geographical knowledge comes into play as he discusses the precise location of the proposed tramroad. He also drew a map of the area to strengthen his arguments. Somewhat belatedly, Iolo thanks Banjamin Hall for the gift of five guineas.

LlGC 21286E, Letter 950, Iolo Morganwg to Benjamin Hall, 14 March 1816

Iolo's plan for the proposed tramroad