An important historical find was made at Llyn Fawr between 1909 and 1913 which was called 'The Llyn Fawr Hoard'. According to the National Museum of Wales, The Llyn Fawr hoard is extremely important because it illustrates the cross over between the Bronze and Iron Ages. It is unusual because of the mixed styles of objects that suggest a wide range of origins. Indeed on the British scale the name Llyn Fawr is given to the period of time dating from 750-600BC.  These precious and unique items can be found in The National Museum and Galleries of Wales.