Łęg Reservoir, reservoir in Poland

The Łęg (Maziarnia) Reservoir is a channel-type dam reservoir on the Łęg river in the Raniżów and Dzikowiec gminas of Podkarpackie. Its 8-metre-high, 395-metre-long dam stands at Wilcza Wola. The reservoir covers 160 hectares and holds 3.83 million cubic metres of water.

The reservoir was formed in 1989 when the Łęg river valley was closed by a dam at Wilcza Wola, 8 m high and 395 m long. The resulting channel-type reservoir holds 3.83 million m³ over 160 ha, fed by a 233 km² catchment on the Kolbuszowa Plateau and the Tarnobrzeg Plain. Its flood-control role is limited by the small flood capacity of the basin.

The reservoir lies in the gminas of Raniżów and Dzikowiec, and its names vary by locality: Zbiornik Łęg, Zalew w Wilczej Woli, Jezioro Maziarnia. The dam at Wilcza Wola, 8 m high and 395 m long, is the structure that made the water body. The reservoir also supplies water for irrigation and for fish-pond farming, functions that shape how the shores are used.

The site is easily accessible by car with parking available near the beach, from where viewpoints and swimming areas are within easy reach. The circuit around the lake stretches about 8,4 km and works well for walking, cycling, or jogging, with a mostly flat path that occasionally rises near the viewing platform.

The reservoir's flood-control role is limited: its capacity is too small to hold a large flood wave, so the dam mainly serves water supply, irrigation, fish-pond farming and recreation. The 8 m high, 395 m long earth dam at Wilcza Wola is the structure to look for.