Llanerch-Ayron Halt was on the former Lampeter, Aberayron & New Quay Light Railway (nprn 419330) between Aberayron Junction and Aberaeron. The railway and halt opened in 1911 and both the halt and this section of line closed to passengers in 1951, the line closing to goods in 1965.
(Source: Colonel M.H.Cobb, The Railways of Great Britain: A Historical Atlas, Ian Allan, second edition 2006)
B.A.Malaws, RCAHMW, 09 September 2013.