Lake Idro (Italian: Lago d'Idro, also Eridio from Latin: Eridius lacus, Lombard: Lac d'Ider, German: Idrosee) is an Italian prealpine lake of glacial origin situated largely within the Province of Brescia (Lombardy) and in part in Trentino.
At 368 m above sea level it is the highest of the Lombard prealpine lakes. The lake is fed principally by the waters of the river Chiese; that river is also its only emissary. It has a surface area of 11.4 km and a maximum depth of 122 m.
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from the ocean, although they may be connected with the ocean by rivers. Lakes, like other bodies of water, are part of the water cycle, the processes by which water moves around the Earth. Most lakes are fresh water and account for almost all the world's surface freshwater, but some are salt lakes with salinities even higher than that of seawater. Lakes vary significantly in surface area and volume of water.
Lakes are typically larger and deeper than ponds, which are also water-filled basins on land, although there are no official definitions or scientific criteria distinguishing the two. Lakes are also distinct from lagoons, which are generally shallow tidal pools dammed by sandbars or other material at coastal regions of oceans or large lakes. Most lakes are fed by springs, and both fed and drained by creeks and rivers, but some lakes are endorheic without any outflow, while volcanic lakes are filled directly by precipitation runoffs and do not have any inflow streams.
The Italian Lakes (Italian: Grandi laghi prealpini, lit. "great pre-alpine lakes") are a group of large lakes lying on the south side of the Alps, in the basin of the river Po and the Mediterranean Sea. As their name suggests, they are essentially located in northern Italy; however, they are also partly located in southern Switzerland. They are all glacial lakes that formed after the retreat of the glaciers at the end of the last ice age. The group is composed of (from west to east): Lake Orta, Lake Maggiore, Lake Varese, Lake Lugano, Lake Como, Lake Iseo, Lake Idro and Lake Garda. The three largest are all well over 100 km; they are: Lake Garda (largest in Italy), Lake Maggiore (largest in southern Switzerland) and Lake Como (deepest in Italy).
The lakes are located in the Italian regions of Piedmont, Lombardy, Veneto and Trentino-Alto Adige/Südtirol, and in the Swiss canton of Ticino. They are all located at least partly in Italy, while two of them (Maggiore and Lugano) are partly in Switzerland.
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from the ocean, although they may be connected with the ocean by rivers. Lakes, like other bodies of water, are part of the water cycle, the processes by which water moves around the Earth. Most lakes are fresh water and account for almost all the world's surface freshwater, but some are salt lakes with salinities even higher than that of seawater. Lakes vary significantly in surface area and volume of water, but in total cover approximately 2.5 X 10 km (less than 2%) of the Earth's surface.
Lakes are typically larger and deeper than ponds, which are also water-filled basins on land, although there are no official definitions or scientific criteria distinguishing the two. Lakes are also distinct from lagoons, which are generally shallow tidal pools dammed by sandbars or other material at coastal regions of oceans or large lakes. Most lakes are fed by springs, and both fed and drained by creeks and rivers, but some lakes are endorheic without any outflow, while volcanic lakes are filled directly by precipitation runoffs and do not have any inflow streams.