Overview
Mistlands_Excavation3 is a Valheim world location that spawns in the mistlands biome, identified internally as Mistlands_Excavation3. World generation places up to 40 per world, with terrain constraints (max delta 5, altitude 4-100), and an exclusion radius of 17m, which is why some seeds have far more of them than others. The data tags it as slope rotation and randomly damaged.
About
Mistlands_Excavation3 is a Dvergr excavation site variant in the Mistlands, often featuring scaffolding and chests with Dvergr-tier loot.