Introduced in the very first Xenoblade Chronicles game, Unique Monsters are a staple of the series, represented as powerful monsters for players to try and take down for added challenge.
Foghewn Augustus is a Unique Monster that appears in Xenoblade Chronicles 3: Future Connected. It can be found near Travalga BridgeLu in Black Mountains and defeating it counts towards completing your Enemypaedia.
Foghewn Augustus (Level 48) | Black Mountains
For assistance with finding all Unique Monsters in Black Mountains, why not check out our useful guide below:
[Guide] Black Mountains Unique Monsters | Xenoblade Chronicles 3: Future Redeemed