Trevelin is in Chubut.
Trevelin was founded by Welsh settlers in the late 1800s. It is in a micro-climate of Patagonia, and it is a rare humid zone in the Argentine Patagonia. Although most people in town do not speak any Welsh, there is a community of proud Welsh speakers who continue to keep the language. With that said, most people have a Welsh ancestor, and many are proud of their heritage even if the idea of modern Wales is somewhat distant from their lives.
Esquel is the main transit point and is 20-30 minutes by car or bus. Trevelin is only 70km from Futaleufu, but the road is a horrific mix or loose rock and gravel over some fairly steep hills. Buses are infrequent. The border is only open during daylight hours normally, although there seems to be plans to make it a standard 8am-8pm border (the locals in Argentina disagree that this is normally the case). If coming going or coming from Futaleufu, the gasoline/petrol is a lot less expensive in Trevelin than in Chile, but the YPF station is only in the center of Trevelin so ensure that you have plenty. Futaleufu now has a small service station, but it does not have 95 octane, and the next one is in La Junta going south on Carretera Austral.
Car seems to be the most practical way to explore the area, but buses also exist around town and villages
The valley is very pleasant and a few ranches (estancias) exist around town, serving up a variety of activities in agrotourism and gastronomical tourism.
Three main teahouses are located in the center, charging anywhere from 120-160 pesos per person for a huge spread of cakes, baked goods, and tea.
Casa de Te Nain Maggie is an excellent choice for 140 pesos per person at Perito Moreno 179, 02945 480232. www.casadetenainmaggie.com. One should book ahead for more than 2 people Thu-Sun.
Hosteria Estafania has rooms from 250 Pesos per night and is conveniently located next to the main road and two blocks from the central roundabout. The breakfast is excellent.