Below is a guide on the locations of the Pillars of Honor at Kamiagata in Ghost of Tsushima.
Jogaku
Iwai Village
This pillar can be found northeast of Iwai Village along the coast. It is directly north of the Kin Lighthouse. Interacting with it will reward you with the Sly Tanuki.
Cape Izumi
This pillar is located in central Cape Izumi. Interacting with this pillar will reward you with the Hidden Forest.
Mount Jogaku
This pillar can be found on Mount Jogaku.
Jogaku Temple
This pillar can be found just outside of town on the east side. Interacting with it will give you the Island’s Keeper.
Kin
Kin Sanctuary
This pillar can be found north of Kin Sanctuary on an island in the river. Interacting with it will give you the Midnight Hanabi.
Endless Forest
This pillar can be found east of the Endless Forest.
Sago
Bitter Hills
This Pillar of Honor can be found southwest of Bitter Hills.