Liinmaa Castle, Medieval hillfort in Eurajoki, Finland.
Liinmaa Castle is a medieval fortress located at the bottom of Väkkäränlahti Bay, featuring two protective walls and water barriers for defense. These structures were built to control trade routes near the Gulf of Bothnia.
The fortress operated during the 14th and 15th centuries as an important stronghold in the region. Archaeological excavations in the 1970s and again in 2004-2005 uncovered evidence of its medieval occupation and use.
The fortress is known by different names across languages, such as Liinmaan linna in Finnish and Vreghdenborg in Swedish, reflecting the region's linguistic diversity. These names show how different cultures shaped the area over time.
The site is open year-round and free to visit, accessible by following directional signs through the area. Visitors should respect the protected archaeological boundaries and be aware of their surroundings when exploring the location.
The site holds protected relic status under Finnish law, which strictly prohibits excavations, damage, and campfires within its archaeological boundaries. This legal protection ensures the location remains intact for future research.
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