Most of the time, Golrie will be in the cell in the north-west. To talk to him, you will need the key to his cell, which is in the crate in the north-east chamber. Once you've freed him, in one quest you will find him outside the cell with the hobgoblins that were guarding him locked up. Later, the hobgoblins will again be outside with Golrie locked in the cell.
8 - Main chamber. This has large and small monoliths, which the player must occasionally push aside to reach portions of the chamber. There are several chests here which hold items used in The Path of Glouphrie quest. The mahogany chest near the centre of the chamber contains the strongroom key which unlocks Yewnock's strongroom to the west. The mahogany chest itself is locked and must be opened with a key found in one of the other chests.
9 - Yewnock's strongroom. This contains Yewnock's machine, which is used in The Path of Glouphrie quest. The strongroom is locked and must be opened using the Strongroom key, which is in the mahogany chest in the chamber to the east of the strongroom.
10 - Exit back to Golrie's cave. This is a one-way passage; you can exit but not enter Yewnock's cave here. You arrive back in the north-east room of Golrie's cave, with the message, "You crawl through a tunnel and end up back in Golrie's cave."
Yewnock's cave in the Gnome Village Dungeon is only accessible during and after The Path of Glouphrie quest.