Even if the administrative capital of the province of Chubut is Rawson, Trelew is its most important industrial and commercial center. It is strategically located at the hub of an important vial network with routes that lead to Puerto Madryn, Rawson, Gaiman, Esquel, Comodoro Rivadavia and other important towns. It is the gateway to the area since many visitors reach its airport in daily 2-hour flights from Buenos Aires and from other important destinations in Patagonia. Trelew itself is not really attractive. It is just a modern industrial city, developed thanks to several plans to promote the creation of an industrial focus in Patagonia.

Trelew's main attraction is, beyond any doubt, the Paleontological Museum Egidio Feruglio which offers a didactic exhibition of fauna and flora fossils that make it possible to rebuild the successive stages in the evolution of this extreme sector of the continent. This museum is the most important of its kind in Latin America.

The city of Rawson is located 20 km away. It was founded by Welsh settlers that disembarked in Golfo Nuevo in 1865. Located on the Atlantic Ocean coast, it is the administrative capital of Chubut; it has an important port, and the picturesque Playa Unión, a beach from where boat rides to spot toninas overas (small species of dolphins known as Commerson's dolphins) set sail.

The Welsh colony of Gaiman is located 16 km (10 miles) west from Trelew, on the banks of the Chubut River, in the mid-inferior valley. Famous for its Welsh-style constructions dating back to the XIX century, it offers the chance to taste some delicious Welsh Tea at some of its traditional tea houses. They still prepare exquisite pastries and jams according to old family recipes transmitted generation after generation. Some of its chapels and farms are also worth a visit.

The Bryn Gwyn Paleontological Park, situated very near the Gaiman, is a real open air museum which offers a view of the latest 40 million years of the earth history, along a 1-kilometer path which also offers beautiful views of the Patagonian sandstone hills and the rolling plains of the Chubut River Valley: the Welsh's Cwn Hyfrwd (Beautiful Valley). The river has its source far away, in the immensity of the Patagonian steppe, and cuts through the plateau, forming in its middle-course an impressive canyon named Valle de Los Altares (Valley of the Altars), where the centennial hard work of the water has carved deep white and reddish ravines. The river finally floods in the large artificial lake of the Florentino Ameghino Dam, which provides water and energy to Trelew, Rawson, Puerto Madryn and Comodoro Rivadavia. It was originally built to cope with the floods that periodically damaged the crops of the Inferior Valley.