Geography of Estonia  Between 57.3 and 59.5 latitude and 21.5 and 28.1 longitude, Estonia lies on the eastern shores of the Baltic Sea on the level northwestern part of the rising East European Platform. It borders the Gulf of Finland, between Latvia and Russia. Average elevation reaches only . The climate is maritime, wet, with moderate winters and cool summers. Oil shale and limestone deposits, along with forests which cover 47% of the land, play key economic roles in this generally resource-poor country. Estonia boasts over 1,500 lakes, numerous bogs, and 3,794 kilometers of coastline marked by numerous bays, straits, and inlets. Tallinn's Muuga port offers one of Europe's finest warm-water harbor facilities. Estonia's strategic location has precipitated many wars that were fought on its territory between other rival powers at its expense. In 1944, under Soviet occupation, the Jaanilinn and Petseri regions were annexed to Russian SFSR territory. The legal status of these territories has not been fully settled yet, though neither Estonia or Russia has not any territorial claims. Estonia is a flat country covering . Estonia has a long, shallow coastline () along the Baltic Sea, with 2222  islands dotting the shore. The two largest islands are Saaremaa (literally, island land), at , and Hiiumaa, at . The two islands are favorite Estonian vacation spots. The country's highest point, Suur Munamägi (Egg Mountain), is in the hilly southeast and reaches above sea level. Estonia is covered by about of forest. Arable land amounts to about . Meadows cover about , and pastureland covers about . There are more than 1,400 natural and artificial lakes in Estonia. The largest of them, Lake Peipus (), forms much of the border between Estonia and Russia. Located in central Estonia, Võrtsjärv is the second-largest lake (). The Narva and Emajõgi are among the most important of the country's many rivers. A small, recent cluster of meteorite craters, the largest of which is called Kaali are found near Saaremaa, Estonia. The impact may have been witnessed by the Iron Age inhabitants of the area. Estonia has a temperate climate, with four seasons of near-equal length. Average temperatures range from on the Baltic islands to inland in July, the warmest month, and from on the Baltic islands to inland in February, the coldest month.