In the South side along the Jiu River with its two branches West Jiu and East Jiu, there is a large depression, and an accessible route towards Southern Romania - Oltenia.
On November 15, 2008, 12 miners died after two explosions at a mine in Petrila, one of six coal mining cities in the Jiu Valley region of Hunedoara County, Romania.
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He was a senator from 1992 to 2008, representing Dolj County (1992–2004) and then Hunedoara County (2004–2008), first of the Socialist Labour Party, and later of the Social Democratic Party of Romania.
The main headquarters of the company is placed in Petroşani, the principal city in the coal mining region of Hunedoara County's Jiu Valley.
According to Oliver Davies, one such sequence discovered at Ruda in Hunedoara County in modern Romania was 75 metres in depth, or over 200 feet.