Here's a more accurate map, I recommend this. http://www.reddit.com/r/DestinyTheGame/comments/36349w/guide_ether_chests_locations_found/ After killing the target you only have 1 a minute and a half to find the chest. If you find a chest try to tell other guardians It's possible the locations randomize Where I've found the chests after defeating the target Forgetten Shore : Near the ship the Fallen occupy, middle ship, small ship near the Warmind building Skywatch: (Building not the hive crash sight) Near the downed helicopter next to the shack On top of the building Inside the building Near the entrance to the Mothyards Ember Caves : The cave leading to the Aksor strike, near the yellow captain On top of one of the mountains The Citadel : Near the exit to the endless steps right by to the side and by the entrance from Ember Caves Tips: Use a sniper to look for green light pillars, they're narrow so look hard. Use arc damage for shield takedowns Super Important: Dieing before you get the key will result in you not receiving it, be cautious Help me by posting where you've found chests and I'll help the community