What is "lupeni"

Lupeni (; German: Schylwolfsbach, Hungarian: Lupény) is a mining city in the Jiu Valley in Hunedoara County, Romania, in the historical region of Transylvania. It is one of the oldest and largest cities in the Jiu Valley. It is located on the banks of the West Jiu river within the Jiu Valley, at a height varying between (in the east) and . The distance from Lupeni to Petrosani is (DN66A), and to Deva (the capital of Hunedoara County) is .

The name is derived from the Romanian "lup", meaning "wolf". Throughout the second part of the 19th century and most of the 20th century, the city's economy was based on mining, but since the 1990s the economy has become more diverse, after many mines were closed.