|location||Victoria Land , East Antarctica|
|part of||Olympus Range in the Transantarctic Mountains|
Helios Ridge is a wide and 7 km long mountain ridge in the East Antarctic Victoria Land . In the Olympus Range of the Transantarctic Mountains , it extends from Mount Helios in an east-northeast direction in the vicinity of Lake Brownworth and rises between the eastern flank of the mouth of the Clark Glacier and the Wright Valley . Meltwater streams flow around it in an easterly direction before flowing into the Onyx River .