Pennal, Cefn Caer Fort

http://roman-britain.co.uk/places/maglona.htm

http://www.coflein.gov.uk/en/site/300159/details/CEFN+CAER+ROMAN+FORT%3BPENNAL+ROMAN+FORT/

http://www.cefncaer.com/en/romanfort/

https://aberdoveylondoner.com/2019/02/03/cefn-caer-roman-auxiliary-fort-pennal/cefncaer-gat-2002-3/