Geology general information


Geology general information

From a distance, the stones on the Lech all look the same. Gray and more or less rounded by the Lech water. But that is deceptive!

If you take the time to look at the Lech pebbles up close, you will be able to see other colors on the gravel banks besides the gray ones. Green, red, pink, white ... Round or rather angular ... Each stone can tell stories of its formation.

Gravel, stones, boulders, sand - all together are also called bedload. And for good reason. Because with the water, the Tyrolean Lech pushes a large amount of stones down its valley. If bedload transport were stopped, the Lech would deepen, gravel banks would disappear, and the Tyrolean Lech would flow through the valley as a straight stream. Therefore, the Lech gravels are an important lifeline of the Lech.

But the Lech is "rich in stone. Its side streams constantly bring it rock material from the mountains. This material is crushed and rounded on its way. The stones are deposited as gravel, and during floods they are carried away, further crumbled and ground. From above, new gravel keeps coming in, which is rolled through the Lech.

The colorful Lechkiesel have a lot to tell! Different colors and shapes indicate their history of origin.

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