TSK · Genesis 35:14

Jacob rose up early in the morning, and took the stone that he had put under his head, and set it up for a pillar, and poured oil on its top.

Jacob set up a pillar on her grave. The same is the Pillar of Rachel's grave to this day.

Then Samuel took a stone, and set it between Mizpah and Shen, and called its name Ebenezer, saying, "Yahweh helped us until now."