Siglufjörður is Iceland's northernmost town... John Buchanan April 8, 2022 and the undisputed herring capital of the north Atlantic during the 1900s. Siglufjörður today. Siglufjörður in 1938. (Image from a photo in the herring museum.) Interior of the highly interesting herring museum. View fullsize Deeply glaciated landscape at Héðinsfjörður, looking south into the highlands. (Click image to enlarge.)