Charkose Jhadi (or in Nepali, चार कोशे झाडी) is the largest and the most dense forest in Nepal.

Koshi Highway runs through Charkose Jhadi linking Tarahara and Dharan.

Charkose Jhadi is about 12km in width between Tarahara and Dharan and about 40km in length from Madhumalla in the east to Bharaul in the west.

Koshi Highway north of Seuti Khola falls under Dharan Sub-Metropolitan and Koshi Highway south of Seuti Khola is under Itahari Sub-Metropolitan.

It is widely rumored that this forest gives homage to the wild animals like python, fox, giant tortoise and so on.