Swagvault WotLK 70-80 Alliance Leveling Guide: 70-72

The sprawling Borean Tundra lies at the far southwestern tip of Northrend, the icy continent also known as the roof of the world. Alliance settlers built the Valiance Keep at southeast of Borean Tundra and preparing to launch an offensive against the Lich King and his undead armies. You can take a ship from Stormwind Harbor (north of the Stormwind City) to Valiance Keep
Most of the quests in Borean Tundra are easy to get and simple to do, you can earn lots of quick experiences here, although I have completed all the quests I can find here but there still 5 quests lost for Alliance players, I guess blizzard will add the last 5 quest for this achievement in further version.
Valiance Keep is the first stand you begin your adventure in Northrend, you can do some quick quests here and get several T4 level equipments especially weapons from quest rewards. That is helpful for your alts if they didn’t well-geared.
Enlistment Day is the first quest you get here from Recruitment Officer Blythe at the square, meet with General Arlos inside the barracks in Valiance Keep, then you will have a simple impresstion of the situations here.
General Arlos will send you to Sergeant Hammerhill with quest A Time for Heroes who ride a black goat at the main entrance, quest The Siege want you to kill 6 Crypt Crawlers in the Sands of Nasam outside of Valiance Keep, then Death From Above, use the Reinforced Net to help you slay 6 Scourged Flamespitters and finally Plug the Sinkholes, use the Incendiary Explosives to collapse two sinkholes, one of the sinkholes is at the southwest edge of Sands of Nasam and a little hard to find, another one is by Farshire.
At the same time you are doing the quests above, you will get the quest A Soldier in Need from Medic Hawthorn outside of Valiance Keep, the quest item can be found in the center of town on the boat. And you will find other 2 quests on the boat, the one is Notify Arlos from Admiral Cantlebree on the upper floor of the boat, and another is from the ritual inside the boat, next to the quest item chest of A Soldier in Need.
Get back to barracks again, you can get Enemies of the Light from Harbinger Vurenn, kill the Cultist Necrolytes northwest of the Valiance Keep by the Farshire till you get Cultist Communique then return to Vurenn; The second step is Further Investigation, bring the Cultist Communique to Vindicator Yaala inside the inn in Valiance Keep; then you will get The Hunt is On, use the Oculus of the Exorcist in three different locations in Valiance Keep to uncover and defeat Cult of the Damned members, after you used the Oculus, you will see Cult of the Damned member in black form, talk with them and kill them, the one in prison is Guard Mitchells, inside of the barrack.
Finally you can get the first part of a long chain quest from Mark Hanes next to Sergeant Hammerhill, Word on the Street, find Leryssa at the inn in Valiance Keep; then Thassarian, My Brother, look for William Allerton inside the Farshire mine, William Allerton is dead and you can find his corpse inside of the Farshire mine, then you get the quest The Late William Allerton, report back to Leryssa and get the 4th step Lost and Found, speak to James Deacon who is in the inn too. In Wine, Truth let you salvage a bottle of Kul Tiras Wine from the underwater shipwreck northeast of Valiance Keep and bring it to Old Man Colburn in the Valiance Keep inn, the wine shows as a small box in the middle part of the sunken boat and some sharks swim around it; After you back, A Deserter lead you to the prison inside of the barracks in Valiance Keep, then Cowards and Fools let you speak to Ataika in Kaskala, you can stop this chain quest here because the further steps will finally lead you to Thassarian at Death’s Stand (Point 11) and starts a new series of quests then end with Last Rites for this story.

wanna read the full guide, please visit http://blog.swagvault.com/2008/11/07/swagvault-alliance-leveling-guide-70-72-in-borean-tundra/