Sturdy Steel Chest
This chest appears to have a sturdy steel lock, of the kind used to protect very valuable treasure. Unfortunately, it looks nearly impossible to pick.
Lock Resistance 7500
Locations Randomly spawns in the Direlands, see below for a list of fixed locations.
Notes Open with Sturdy Steel Key. Often contains Royal Runed Weapons and Princely Runed Weapons.

Fixed Locations:

Sturdy Steel Chest Spawns

Data courtesy of Mob Tracker. Zoomable color

maps available with downloadable Viewer.