The Estonian water network is dense, because the amount of precipitation exceeds evaporation here Watercourses There are thousands of watercourses in Estonia – according to the literature, more than 7,300 – with a total length of more than 31,000 km [1]. There are almost 3000 watercourses registered in the Estonian Nature Information System [2]. Most Estonian watercourses are short (94.3%), up to...