The Drenan Highlands are a location found in Breath of the Wild.
Breath of the Wild
The highlands are located at the northern part of Hyrule, just northwest of the Great Hyrule Forest. The area is patrolled by a dangerous White-Maned Lynel who wields a Savage Lynel Spear and Savage Lynel Bow with Shock Arrows.
The dragon Dinraal will regularly appear near the Drenan Highlands, riding down from the northeast. He'll pass right by the highlands as it makes its way to the Tanagar Canyon. However, despite Dinraal flying very low to the ground, this is not a good place to be farming Dinraal parts, as they often will drop into the abyss, just north and west of the highlands.
Nearby Korok Seeds
Stand near the pinwheel, shoot the balloons.
Shoot the acorn in the hollow log.