This Explorable Area is in the southern part of the Charr Homelands. It is home to some of the deadliest creatures and is the only explorable area known that has been set on fire. It is also an exclusive home to the Raven, one of the 4 pets that can fly.
This is the only explorable area in Eye of the North that does not directly adjoin a town or outpost.
Vanquishers must defeat 370-453 foes in this area.
A prepared party can clear the area in around an hour, yielding at least 4000 Ebon Vanguardreputation points, which makes this the best place to farm Vanguard points.
All of the Worms in the southwest corner must be defeated.
The Siege Devourer (only present in Hard mode) can be subdued and then ridden, and you can take it into either of the adjoining areas, Grothmar Wardowns and Dalada Uplands. You can also bring the siege devourers from both of those areas to Sacnoth Valley, allowing a party to control up to 3 siege devourers at a time.
The massive forest fire in the southeast is caused by the titan Ignus the Eternal, and it persists even after defeating him as the object of The Smell of Titan in the Morning. Standing near certain burning trees will cause Burning.
One of the easternmost parts of Tyria lies within this explorable area (the other is in Dalada Uplands).