Cenarion Expedition The Cenarion Expedition is a faction of night elves and tauren based in Zangarmarsh and led by Ysiel Windsinger . The Expedition was sent by the Cenarion Circle to Outland shortly after the Dark Portal was reopened in order to study the surviving life forms of that uncharted world . Although it began as a small organization directly controlled by the Circle , the Expedition has grown to become an autonomous organization , independent of the Circle ' s leadership on Azeroth . In fact , Circle reputation ( regardless of how good or bad ) bears no weight with the Expedition , and all characters begin at neutral with them . The primary base of operations for the Cenarion Expedition is Cenarion Refuge in eastern Zangarmarsh . Additional Expedition outposts are located in Hellfire Peninsula , Terokkar Forest and Blade ' s Edge Mountains . A subdivision of this faction is the Circle of Defiance . The Druid organization D . E . H . T . A . in Northrend is also aligned with the Cenarion Expedition , and their quests give reputation with this faction . Reputation . Neutral to Honored . As soon as you reach Level 62 , head to Zangarmarsh and look for Darkcrest and Bloodscale Naga ( and their slaves ) to grind . Run Slave Pens or Underbog whenever you can ; a good instance run with a capable group will get you more reputation faster than soloing mobs outside the instance . Going from Neutral to Honored with the Cenarion Expedition is pretty easy . Alternatively , at level 60 , you can start turning in . Every time you complete a turn - in , Lauranna Thar ' well will give you a . These packages have the chance to contain an , an item which begins a repeatable quest . Each Uncatalogued Species you hand in gives 500 reputation . Save these for later , as they continue to give reputation after reaching Honored . The more of these you can turn in , the more chance you will have of getting an Uncatalogued Species , which will make it a shorter grind to / . This quest is no longer available once you reach Honored , so make the most of it while you can . Ideally , you will want to do this quest 36 times , turning in 360 Unidentified Plant Parts ( last turn - in can be done at 5999 / 6000 ) . You may even want to avoid Slave Pens or Underbog runs before you reach , to make sure you can have all the 36 turn - in , so that the chance of getting is maximized . It is possible to get as many as 7 or 8 if you are lucky . This can save you a few Steamvault reputation runs later . ( Together with the other reputation quests , it is even possible to reach Revered without a single instance reputation run ! ) If you are an herbalist , and interested in Sporeggar faction , you may want to grind the Bog Lords which can be found in each of the corners of Zangarmarsh ( Northeast , Southeast , Southwest ) . Their bodies can be " picked " by herbalists and often yield Unidentified Plant Parts , while every kill yields 15 reputation with Sporeggar . Between running Slave Pens and Underbog and handing in Unidentified Plant Parts , it is very easy to reach Honored . Honored to Exalted . Once you are running Slave Pens and most of Underbog on normal mode will no longer grant reputation . Now is the best time to do the Cenarion Expedition quests . There are quests in Hellfire Peninsula , Zangarmarsh , Terokkar Forest , Blade ' s Edge Mountains and Netherstorm . It is also the time to turn in any Uncatalogued Species you have found . Doing this should get you part of the way into Honored . Apart from quests and Uncatalogued Species , you have multiple options for reaching : Rep Grind as Of . Of the 3 dungeons that give Cenarion Expedition Reputation , Steamvault ( on normal ) is by far the most efficient one , because of size and mobs . Each full clear as an 85 modestly geared dps takes about 15 minutes and yields about 1 . 3k rep . If you are time impaired or just lazy about it make sure you do Heroic once it resets . It ' s an extra 1 , 000 rep if you do a full clear each day . Grinding Steamvault to Exalted or grinding to Revered and then doing ALL the zone quests ( alltogether they yield ~ 20 , 680 ) would be the best way timewise . The only reason to do the quests would be to either work towards loremaster at the same time or just to break up the monotonous grind of Steamvault . Please keep in mind that if you ' re not Exalted with your home - cities the mobs ALSO give rep for those if you ' re wearing the tabard . Making you extra efficient . I strongly advise against doing the other dungeons as they are at least double or triple the length of Steamvault , for far less rep , even on Heroic . Rewards . Early rewards include a decent leather chest with agility and stamina , a one - handed healer ' s mace , and a melee staff with stamina and run speed bonus , all available at with Cenarion Expedition and usable at level 62 . These rewards provide a good reason to grind to Honored early . Additionally , at , players can purchase , one of the best pre - Karazhan tanking necklaces , as well as , one of the best pre - Karazhan cloth healing helms . Among the notable rewards at is , a high - stamina ring with solid spell hit appropriate for all dps casters , as well as , a level - 70 two - handed mace with armor and damage in feral forms . The armor bonus makes the mace an excellent tank - weapon replacement for and . High - level crafting patterns focus on Nature Resistance . When you hit exalted with Cenarion Expedition , you will be able to buy a flying mount for after discount . Arcanist Xorith and Haldor the Compulsive will sell specialized Flasks only usable in raid zones to players who are exalted with Cenarion Expedition , the Sha ' tar and the respective faction ( Scryer or Aldor ) . The flasks are only purchasable with Mark of the Illidari obtained from creatures in Tempest Keep : The Eye , The Serpentshrine , Mount Hyjal and The Black Temple . Faction rewards :