Cronvangr Cave is a cave located just south of Riverside Shack, and north of Eldergleam Sanctuary (south-southwest of Windhelm and west of Bonestrewn Crest or directly east of Mixwater Mill). It is easily noticed by the spider egg sacks outside and a dead mammoth caught in the web.
Inside the entrance, a path leads east, then turns south to a room with six frostbite spiders. There are two exits from the first room. One is obvious, to the south-southwest, and is covered in spider webs (leading to the spider room). The other is on the opposite (north) side of the room and is activated by a brown button in a square frame near the fake rock door. Another one can be found on the other side. This door leads to the cottage room.
Just behind the door is a floor tile fire trap. The cottage room itself is a circular room with a cottage in the northwest part of the room on a ledge. There are three leveled vampires guarding the cottage. In the lower part of the room is the corpse of a Dark Elf surrounded by candles, and another corpse of a vampire.
Inside the cottage, several of the vampires may be sleeping. There is the corpse of a Breton on a table, an apothecary's satchel on a barrel near the table, a chest next to one of the beds, and various poisons around the room. There is also a Lockpicking skill book The Locked Room on another table.
The other exit from the first room leads to a room with eight spiders, and a long spiral plunge into the earth. Near the next hallway that leads east to Cronvangr Broodlair, there is a pool of water. A small chest is at the bottom on the southeastern side of the pool.
This lair is a sub-location for the cave. The path starts to the north, then turns right (east), where two spiders are patrolling the path. The path turns south, where a chest can be found behind a dense web. The path continues up to the west, then north, then west again, where it opens into a large room containing the spider nest. There is a giant frostbite spider guarding a chest in the nesting room, along with three normal spiders. On the left side of the chest is a moonstone ore vein. Another exit from the room leads north, then turns west, and leads back to the cave (actually leads to a ledge above the first room of the cave).
- Possible location of Queen Freydis's Sword
- Possible location of The Forgemaster's Fingers
- Possible location of Meridia's Beacon
- Possible location of Shalidor's Insights
- Possible location for the Courier in Arniel's Endeavor
- Possible location of Roggi's Ancestral Shield
- Possible location of Gunmar in A New Order
- Possible location of the third totem in Totems of Hircine
- Possible location for Animal Extermination
- Quest items found at this location are sometimes inside an egg sac, instead of a normal chest.