The Mincio River flows 75 km or 46 miles from Lake Garda to Governolo. It runs through two regions of Italy, Lombardy and Veneto. The Mincio has two highs, spring and fall, and a winter low. And while the Mincio isn't one of Italy's longest rivers, it is one of the most important. The Mincio drains Lake Garda, Italy's largest lake. It is a major tributary of the Po. The Mincio is navigable for its entire length. The river is an important fish habitat. Several threatened species, such as the Adriatic sturgeon and South European Nase, are found in the Mincio River.