This is the 13679th most frequent Turkish word.
kuzeyde
"To the north" or "in the north."
Here, 'kuzeyde' specifies the location 'in the north', indicating a geographical position.
Kuzeyde büyük bir dağ var.
There is a big mountain in the north.
In this sentence, 'kuzeyde' describes 'living in the north', specifying where the people live.
Kuzeyde yaşayan insanlar bu soğuk havaya alışkındır.
People living in the north are accustomed to this cold weather.
'Kuzeydeki' functions as an adjective implying 'in the north', modifying the word 'forests' to provide their location.