What’s the best way to mark the spawn points of bosses like Eikthyr or Bonemass?

Marking boss spawn points in Valheim is a critical part of gameplay, especially for new and experienced players who want to revisit these locations for farming resources or helping others. Boss spawn points are found in specific biomes and are marked by large stone structures called Vegvisirs, which reveal the boss altar locations on your map. To mark these effectively, you need to understand the game mechanics and use the map system wisely.\n\nFirst, locate the Vegvisir stone in the biome where the boss resides. For example, Eikthyr’s Vegvisir is found in the Meadows biome, while Bonemass’s is in the Swamp biome. These stones are often near runestones or other landmarks. Interact with the Vegvisir to reveal the boss altar’s location on your map. This is the first step to ensuring you can always find the boss spawn point later.\n\nOnce the boss altar is revealed, open your map and place a custom marker. Use the right-click function to add a marker and label it clearly, such as ''Eikthyr'' or ''Bonemass.'' This ensures you can easily identify the location later. Custom markers are essential for organizing your map, especially as you explore more biomes and encounter multiple bosses. You can also use different marker icons to differentiate between boss spawns and other points of interest.\n\nA common challenge is losing track of the boss altar after initial discovery. To avoid this, consider building a small outpost near the spawn point. This can include a portal for quick travel, a workbench for repairs, and storage for boss-summoning items like Eikthyr’s trophy or Bonemass’s withered bones. Building an outpost not only marks the location but also provides a functional base for future boss fights.\n\nFor players exploring multiple biomes, it’s helpful to use consistent naming conventions for markers. For example, label all boss spawns with the boss’s name and biome, such as ''Eikthyr - Meadows'' or ''Bonemass - Swamp.'' This prevents confusion when revisiting areas or sharing map information with friends in multiplayer. Additionally, use the map’s zoom feature to ensure your markers are placed accurately, as boss altars can sometimes be in hard-to-reach locations.\n\nFinally, consider the practicalities of traveling to boss spawn points. If the altar is far from your main base, build a portal network to reduce travel time. Portals require fine wood, greydwarf eyes, and surtling cores, which are relatively easy to obtain. By connecting your main base to boss spawn outposts, you can quickly return for farming or assisting other players.\n\nIn summary, marking boss spawn points involves locating Vegvisirs, using custom map markers, and building functional outposts. These steps ensure you can easily revisit boss altars for farming or multiplayer assistance. Consistent labeling and portal networks further enhance your navigation efficiency, making boss fights and exploration more manageable.