The Hracholusky Reservoir was built between 1959 and 1964, on the river Mže. This reservoir is used for industrial and energetic purposes. It also serves as a flood control and for recreation. The reservoir is 270 m long, 27 m high and the maximum depth is 31 m. It covers an area of 470 ha. The Pňovan Bridge stands above the reservoir. Around the Hracholusky Reservoir there are several campsites. Water transport operates on the lake. It is also possible to do fishing, bathing or water sports here.