Tyrifjorden, Freshwater lake in Ringerike, Norway
Tyrifjorden is a large freshwater lake spread across the municipalities of Ringerike, Hole, Modum, and Lier in Norway. The lake has three main branches called Holsfjorden, Nordfjorden, and Steinsfjorden, giving it a distinctive branched shape.
For centuries, the lake served as a key route for moving timber cut from the surrounding forests down toward the coast. This role as a working waterway shaped the towns and communities that grew up along its shores.
The name Tyrifjorden comes from the Old Norse word for resinous dead wood, which once lined the western shores of the lake. Today, the lake draws people from nearby towns who come to fish, paddle, and walk along its banks.
A walking and cycling path follows the eastern shore between Vikersund and Åsa, with several spots where you can get close to the water. The lake is reachable from multiple surrounding towns, so it is worth checking which entry point suits your plans best.
Near the lake stands the site of the Kjerraten system, a chain of water wheels once used to haul logs uphill without any steam or engine power. It was one of very few such installations in Europe, making it an unusual piece of engineering history tied directly to this landscape.
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