What are the high level OSR modules? (10-15+)

[JoeGKushner]

Just wondering what the high level modules for the various OSR clones are. Most of the ones I see tend to be low level and was wondering if those old waters had brought forth any higher level game play to the table. High level adventurers were relatively rare in the AD&D 1st and 2nd ed games with a few notable exceptions.

 

[Grimstaff]

Ice Tower of the Salka

Verdant Vault of Malakum

Red Mausoleum

Many others, often for OSRIC, available here.