Some 19th- and early 20th-century antiquarians and surveyors visited the Erris area and wrote about their experiences and thoughts on the area at that time. These include works by Patrick Knight ("Erris in the Irish Highlands"), Caesar Otway ("Sketches in Erris and Tyrawley") and Thomas Johnson Westropp ("The Promontory Forts and Early Remains of the Coast of Mayo"). The Ulster Cycle legend of the Táin Bó Flidhais concerns the Barony of Erris in the time period of approx the 1st century AD.