Assassins creed valhalla map icon, never seen this before and its not in the map legend anyone know what it is? I'm at the point and its 200+ meters below the ground

The Measure of a Norseman - Assassin's Creed Valhalla Guide - IGN

Valhalla map will only have 'dots' to encourage exploration

Valhalla map will only have 'dots' to encourage exploration

England, Assassin's Creed Valhalla Map

Valhalla map will only have 'dots' to encourage exploration

The trailer for 'Assassins Creed: Valhalla' hints at depicting

Valhalla] I have an Assassin's symbol on the map, what is it for

AC Valhalla Map - What is this white/gray icon? It doesn't change

Anyone figured this out yet? I've come across this room a couple

Cant 100% Moon Grotto. Have collected every collectible and every

Anyone figured this out yet? I've come across this room a couple

AC Valhalla Map - What is this white/gray icon? It doesn't change