Žagarė is the only waterfall in this region, which was formed after a fault in the earth's crust occurred in that place - millions of years ago due to the tectonic movements of the earth's depths, an explosion occurred at the current dam. The waters of the Švėtė River, formed after the last ice age, washed away the sands and clays that filled the subsidence of the blocked eastern block much easier and faster than the dolomites of the western block. This resulted in the formation of a waterfall. Man has used the power of waterfall water for his own purposes. After building a dam with an arched bridge in Švėtė valley, man harnessed a powerful hydro turbine. She turned mill wheels, an electric generator, a sawmill, a carder. 19th century a concrete dam was built, called "bliūdu" by the people of Zagara due to its appearance, and flooded the waterfall.