Alnmouth is a village in Northumberland. It is situated about 4 miles south-east of Alnwick. Located at the mouth of the River Aln the village has been an important trading port in Northumberland`s past mainly involved in the export of grain and smuggling. (From Wikipedia the free encyclopedia.) Each Print is 16-12 Inches Perfect size ready for Framing £9.99 Plus Postage & Packing.