Botsmarksblocket, Natural monument in Botsmark, Sweden

Botsmarksblocket is a glacial erratic on the right bank of the Sävarån river northeast of Botsmark in Umeå Municipality. It measures 15 metres in height and 30 by 30 metres, and weighs about 35,000 tonnes, making it the largest erratic found in Sweden. It is protected as a natural monument.

The boulder was carried to its present site on the right bank of the Sävarån by a now-vanished glacier during the Ice Age, and the Czech source also mentions earthquake action. It is protected as a natural monument. Some references may wrongly call it the largest glacial erratic on Earth by length.

The block is a protected natural monument (naturminne) from the Ice Age, and its name is used both as Botsmarksblocket and Botsmarks flyttblock. It lies by the Sävarån just outside Botsmark, on the river's right bank, and is easy to reach from the nearby road. Some references note it is sometimes wrongly taken as the largest erratic on Earth by length.

A parking area with a fireplace provides straightforward access to the boulder via a short walking path. Winter weather can affect road access, so checking conditions beforehand helps with planning your visit.

The boulder is regarded as the largest glacial erratic in all of Sweden, demonstrating the tremendous power exerted by ancient ice sheets. Its size and preservation make it a rare example of such formations in the region.