Carreg yr Imbill—in English Gimlet Rock or sometimes Gimblet Rock—is the remains of a large granite

Granite

Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...

 outcrop and quarry

Quarry

A quarry is a type of open-pit mine from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone, construction aggregate, riprap, sand, and gravel. They are often collocated with concrete and asphalt plants due to the requirement...

 at Pwllheli

Pwllheli

Pwllheli is a community and the main market town of the Llŷn Peninsula in Gwynedd, north-western Wales. It has a population of 3,861, of which a large proportion, 81 per cent, are Welsh speaking. Pwllheli is the place where Plaid Cymru was founded. It is the birthplace of Albert Evans-Jones -...

, 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...

, 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...

.

The granite was mined by the Liverpool and Pwllheli Granite Company (sometimes known as the Pwllheli Granite Company), which used the granite for stone sett

Sett (paving)

A sett, usually the plural setts and in some places called a Belgian block, often incorrectly called "cobblestone", is a broadly rectangular quarried stone used originally for paving roads, today a decorative stone paving used in landscape architecture...

s to pave the streets.

The worked out quarry forms the basis for a large caravan

Mobile home

Mobile homes or static caravans are prefabricated homes built in factories, rather than on site, and then taken to the place where they will be occupied...

park.