Oily Cavern

 is a location in the Caldera region in Outward.

Description
A small dungeon with three sections. To the left are some Calygreys, and to the right is a larger cavern with a Myrmitaur and the Artifact Altar.

Artifact Altar
"Lines of glowing white, yellow and magenta energy spiral through the fossils of this Calygrey Altar, humming a repeating melody...If you had some ambient power yourself and something that could mimic the melody it emits...Perhaps you could use this for something..."

The Calygrey Altar can be used to upgrade Fossilized Greataxe to Grind. Interact with the Altar with the Greataxe equipped, and the Blessed, Mist and Rage buffs active.

Enemies

 * 1x Myrmitaur
 * 2x Calygrey
 * 1x Elder Calygrey

Loot
Loot Containers:
 * 1x Calygrey Chest
 * 1x Adventurer's Corpse
 * 1x Knight's Corpse
 * 1x Junk Pile

Gatherable:
 * 4x Green Mushroom
 * 1x Palladium Vein
 * 3x Oil Node (Caldera)
 * 3x Iron Vein
 * 2x Ableroot (Gatherable)
 * 2x Blood Mushroom


 * 0-3x Unidentified Samples (potential)