Vârșolț Reservoir (Romanian: Lacul de acumulare Vârşolţ) is the largest lake in Sălaj County, Romania. It is a reservoir was made in 1976-1979. Vârșolț Lake is situated in Crasna basin, between Crasna and Vârșolț. The dam has a height of 17 m (56 ft) and a length of 2,160 m (7,090 ft) having a volume of 50,2 millions m3 of water. The lake was created by the floods mitigation and protection against floodings. Created after 1970 floods in Romania, the lake controls the water output of the Crasna River. Vârșolț Lake is a drinking water source for Zalău and Șimleu Silvaniei towns. The lake's surface is of 652 ha.