You’ll notice this shard if you ever approach Evermore from Stormhaven. Crossing the bridge from Stormhaven to Bangkorai gives a clear view of this shard, that stands on the outside of Evermore’s fortifications.
Collectible is on the outside of the wall protecting Evermore.
You can clearly see the awesome view of Evermore’s bridge from the shard’s location. This bridge takes you to/from Stormhaven