In 1887, John Bartholomew's Gazetteer of the British Isles described Glaslyn like this:
Glaslyn, rivulet, on borders of Carnarvon and Merioneth, traversing Aberglaslyn Pass.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Glaslyn has changed, please see our redistricted information for the modern district of Gwynedd. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Glaslyn and units named after it.
GB Historical GIS / University of Portsmouth, History of Glaslyn, in Gwynedd and Caernarvonshire | Map and description, A Vision of Britain through Time.
Date accessed: 19th June 2013
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