- The Midden
- Shriekwind Bastion
- Can be found on dead giants.
- Around Orphan Rock
- Can also be found in random loot.
- Several more can be found in certain containers with the Prowler's Profit perk.
- Can be mined from Ruby Geodes added by Dragonborn.
- Several Ruby Geodes can be found in the spider nest underneath Fort Frostmoth. Note that although the spiders can be easily dislodged even by a low level player who takes them out one by one by sneaking with a bow, the Ash Spawns that infest the fort are formidable opponents, and thus lower level players are advised to stay away from them and the geodes.