Poiana Uzului lake is located near Sălătruc and its main aim is to supply water and to generate power. The dam, behind which the lake formed, is a contra fort dam, one of the few of its kind in Romania. The dam is 84 metres high, 507 metres long and has a length of 3.75 km, an area of 334 hectares and a volume of 98 million cubic meters. The maximum depth of the lake is 64.7 metres. After 1990, around the dam numerous holiday houses and pensions opened, especially during summer. It is the ideal place for fishing, but lately the access to the lake is restricted because the lake supplies several towns in Bacău, including Bacău County. At the end of the lake Uz Valley Camp is found.
Uz Valley area has a remarkable tourist potential, although typically Romanian, tourism is underdeveloped. The main landmark is Poiana Uzului dam, built in 1973, 82 metre high, 500 metres long, 3.8 kilometres in length, 334 hectares, 98 million cubic metres in volume and an approximately 64 metres depth. Uz Dam is a sanitary reservation, and aims to supply the following cities with drinking water: Dărmăneşti, Tîrgu Ocna, Oneşti and partly Bacău.
As accommodations in the area, we can find some pensions and cottages located on the "Tail of the Lake", Uz Valley Camps (located at the base of the dam) and camp Sălătruc (located upstream from the border with Harghita County).
The artificial Poiana Uzului Lake is formed by banking Uz River waters, in 1973, at the same time with Uz Dam, Pivniceri, being the first gorge, between Dealu Mare on the right and Căpuţeanu on the left. The dam was built between 1965 up to 1973 out of concrete, first of its kind in Romania, by contra forts, with 33 first class plateaus, 500 metres long, 80 metres high and 74.1 metres base breadth. The altitude rate at its crest is 450 metres above sea level, the breadth crest including the guard dam of 6 metres, and the foundation is 40 metres deep and 40 metres wide thought-out. The drinking water socket, the industrial water outlet and the micro-hydropower plant with a 5 MW output are recessed in the dam body.