halygon
Grandmaster
This is a lockpicking guide from @Six_ in its original form from the old wiki site. Here is the link to the original thread: http://uoforum.com/threads/lockpicking-guide.1450/
Identifying the Dungeon Chest's Level
First and foremost you need to understand how to identify the level of the dungeon chests you find when crawling dungeons. The following chart helps you do just that. Three most important things are: what kind of chests it is, amount of gold, and does the chest contain arrows or not? If the chest has around 200 gold and no arrows then it is a level four chest. If it has around 200 gold and contains arrows it is a level three chest. Arrows are number one identifier between level threes and fours so look for them!
List of Dungeon Chest Locations
My understanding is that there are 28 level four chests across the entire shard. Below is a list of the level 4 chests I have identified and some information. The danger level column is purely my opinion. Static chests are chest that spawn in the same square every time wandering chests spawn in the same general area but not necessarily the exact same square.
*I believe the last chest is located in Wind where the dragons spawn. I have not gotten to check yet. Other possible areas are the Ratman fort in the Ice Dungeon and Orphidian Keep in t2a. If someone knows where the last one is please post a comment!
Covetous Chests
1. Storage Room
2. Covetous Dragons
3. Torture Room
Deceit Chests
4. Bone Yard -- #1
5. Mushroom Room -- #2
6. Lich Lords -- #2
Despise Chests
7. Acid Elementals -- #4
8. Ogre Lords -- #3
Destard Chests
9. Destard Steps
10. Shadow Wyrms
11. Ancient Wyrm
Fire Dungeon T2a Chests
12. Fire Lich Lord
13. Wizzard Fortress
Fire Temple
14. Fire Temple
Hythloth Chests
15. Hell Hounds
16. Hythloth Gazers
17. Balron
18. Hythloth Imp Room
Ice Dungeon Chests
19. White Wyrm
20. Ice Fiends
Shame Chests
21. Poison Beach
22. Eldger Gazer Bridge
23. Water Elemental Island
Terrathan Keep T2a
24. Balaron Terrathan
25. Terrathan Web
26. Terrathan Orphidian Pit
Wrong Chest
27. Executioners