The black fissures

Describe a geographically or meteorologically unstable region of your world.
The fastest way to another area is through the black fissures. These scars were gouged into the earth during the ancient wars. The gouges still contain decaying radioactive elements, making them glow in a throbbing green and yellow light- appearing to be alive. Passage through the fissures is only undertaken with grave necessity. An alternate route exists, but it is considerably longer on foot.  Sporadically, jets of toxic spew erupt into the air. This makes it only slightly less trecherous than travel by foot.

Type

Badlands