Porthmadog known locally as "Port", and historically rendered into English

English language

English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 as Portmadoc, is a small coastal town and community

Community (Wales)

A community is a division of land in Wales that forms the lowest-tier of local government in Wales. Welsh communities are analogous to civil parishes in England....

 in the Eifionydd

Eifionydd

Eifionydd is an area in north-west Wales covering the south-eastern part of the Llŷn Peninsula from Porthmadog to just east of Pwllheli. The Afon Erch forms its western border. It now lies in Gwynedd....

 area of Gwynedd

Gwynedd

Gwynedd is a county in north-west Wales, named after the old Kingdom of Gwynedd. Although the second biggest in terms of geographical area, it is also one of the most sparsely populated...

, in Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. Prior to the Local Government Act 1972

Local Government Act 1972

The Local Government Act 1972 is an Act of Parliament in the United Kingdom that reformed local government in England and Wales on 1 April 1974....

 it was in the administrative county of Caernarfonshire

Caernarfonshire

Caernarfonshire , historically spelled as Caernarvonshire or Carnarvonshire in English during its existence, was one of the thirteen historic counties, a vice-county and a former administrative county of Wales....

. The town lies 5 miles (8 km) east of Criccieth

Criccieth

Criccieth is a town and community on Cardigan Bay, in the Eifionydd area of Gwynedd in Wales. The town lies west of Porthmadog, east of Pwllheli and south of Caernarfon. It has a population of 1,826....

, 11 miles (17.7 km) south west of Blaenau Ffestiniog

Blaenau Ffestiniog

Blaenau Ffestiniog is a town in Gwynedd, north-west Wales. It has a population of 5,000, including Llan Ffestiniog, which makes it the third largest town in Gwynedd, behind Caernarfon & Porthmadog. Although the population reached 12,000 at the peak of the slate industry, the population fell due to...

, 25 miles (40.2 km) north of Dolgellau

Dolgellau

Dolgellau is a market town in Gwynedd, north-west Wales, lying on the River Wnion, a tributary of the River Mawddach. It was the county town of the former county of Merionethshire .-History and economy:...

 and 20 miles (32.2 km) south of Caernarfon

Caernarfon

Caernarfon is a Royal town, community and port in Gwynedd, Wales, with a population of 9,611. It lies along the A487 road, on the east banks of the Menai Straits, opposite the Isle of Anglesey. The city of Bangor is to the northeast, while Snowdonia fringes Caernarfon to the east and southeast...

. It has a population of 4,187.

The town developed in the 19th century as a port exporting slate

Slate

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. The result is a foliated rock in which the foliation may not correspond to the original sedimentary layering...

 to England.