We found a 150 year old bottle of Irish Sea Moss at an old pharmacy 30 years ago ( my husband was working there an they were doing a renovation. Of course the giant bottle is now an Antique, but inside was some Irish Sea Moss ( not editable). Printed in gigantic letters the bottle said Irish Sea Moss. This bottle was in Northern Canada near the Selkirk Mountains. They are larger than the Rockies . A tiny snowy town where people used Irish Moss. . If you like I would be happy to send you a photo . One wonders how the Moss arrived before the time of the railroad.