This key is a rareish drop from the Kolkar centaurs in the Barrens.
There are two chest locations to use the key if you get one. One is at the Forgotten Pools in the hut behind Barak Kodobane. The other is further south by the Stagnant Oasis guarded by Wyneth.
The chests contain a mix of level-appropriate stuff, usually mostly vendor trash with one green. If you have a key, it's probably worth opening the nearest chest, but it's definitely not something you'd want to farm for.
Log in or register to be the first to upload a screenshot.