The Mag'har are the uncorrupted orcs found at Garadar in Nagrand.

“Reputation rewarded for killing mobs will no longer automatically deprecate. This means trivial mobs will continue to give out their full amounts of reputation on kill for the majority of cases in the game (level 70 creatures in Stratholme, for example, will continue to award the full amount of rep to level 80 players seeking to boost their Argent Dawn faction). “ Patch 3.08 Notes.

Nagrand Mob Reputation

1. Boulderfist Crusher are located at the Burning Blade Ruins in Nagrand and reward 10 reputation.
2. Boulderfist Mage are located at the Halaani Basin in Nagrand and reward 10 reputation.
3. Boulderfist Mystic are located at the Burning Blade Ruins in Nagrand and reward 10 reputation.
4. Boulderfist Warrior are located at the Halaani Basin in Nagrand and reward 10 reputation.
5. Kil'sorrow Cultist are located at at Kil'sorrow Fortress in Nagrand and reward 10 reputation.
6. Kil'sorrow Deathsworn are located at Kil'sorrow Fortress in Nagrand and reward 10 reputation.
7. Kil'sorrow Spellbinder are located at Kil'sorrow Fortress in Nagrand and reward 10 reputation.
8. Murkblood Brute are located at Sunspring Post in Nagrand and reward 10 reputation.
9. Murkblood Putrifier are located at Sunspring Post in Nagrand and reward 10 reputation.
10. Murkblood Raider are located at Sunspring Post in Nagrand and reward 10 reputation.
11. Murkblood Scavenger are located at Sunspring Post in Nagrand and reward 10 reputation.
12. Warmaul Brute are located at Warmaul Hill in Nagrand and reward 10 reputation.
13. Warmaul Reaver are located at Laughing Skull Ruins in Nagrand and reward 10 reputation.
14. Warmaul Shaman are located at Laughing Skull Ruins in Nagrand and reward 10 reputation.
15. Warmaul Warlock are located at Warmaul Hill in Nagrand and reward 10 reputation.

Mag'har Repeatable Quests

1. Proving Your Strength is obtained from Warden Bullrok at Garadar in Nagrand. The quest requires you to obtain 10 Obsidian Warbeads from the ogres in Nagrand, doing this will reward you with 500 reputation through exalted.

Mag'har One Time Reputation Quests

1. Mag'har Quests (WoWHead.com)