As Lake Leucara, the lake (and surrounding area) features in the works of Raymond Williams, who wrote People of the Black Mountains detailing the lives of ordinary people in the area at intervals from 30,000 years ago through to mediaeval times.
In his diary of the 1870s, Francis Kilvert noted several visits to Llangorse Lake, including a July 1878 outing in the company of his father, when the pair caught a brace of perch in an hour.