Riserva Naturale Pian di Spagna e Lago di Mezzola, Regional nature reserve in Province of Sondrio, Italy.
The Riserva Naturale Pian di Spagna e Lago di Mezzola is a regional nature reserve in Lombardy, sitting between Lake Como and Lake Mezzola. It covers wetlands, alluvial plains, and open water areas broken up by flat meadows and small wooded rises.
The area was placed under protection in 1985 after its wetlands were recognized as important for wildlife. Long before that, the plain had been shaped by the Adda and Mera rivers, which repeatedly flooded and reshaped the land over centuries.
The name Pian di Spagna, which translates as "Plain of Spain", comes from a period when the Spanish controlled this part of northern Italy. Today, visitors can see old watchtowers and stone walls scattered across the plain that date back to that time.
The reserve can be explored on foot or by bike along marked paths, with some sections near the water's edge being easier to reach than others. Birdwatchers tend to visit in the early morning hours, when wildlife is most active along the shore.
Lake Mezzola and Lake Como were once directly connected and formed a single body of water before river sediment gradually separated them over centuries. The flat land between the two lakes is what remains of that slow natural separation, and you can see it clearly as you walk through the reserve.
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