Gaiman is a city in the Chubut Province of Patagonia in Argentina with a population of about 6000. It is situated 27m above sea level close to the River Chubut, about 15km to the west of Trelew. It is a cultural and demographic centre of the region known as Y Wladfa in which Welsh-Argentinians are concentrated. The town was founded in 1874 by settlers from Wales. Several thousand people in the region have conserved the use of the Welsh language alongside Spanish. The 'Eisteddfod de Chubut', a Welsh cultural festival, is held here every October. The town is welcoming of tourists, and Welsh teahouses (tai tê) are numerous. The Museo Histórico Regional (Historical Regional Museum) commemorates local history (the signs are bilingual in Spanish and Welsh). There are a number of Welsh Protestant chapels, of which the largest is Capel Bethel.
Some 10 km to the south of Gaiman is Bryn Gwyn, where a large number of fossils can be seen.
The town's name originates in an indigenous Tehuelche place-name meaning 'rocky point'.
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