What mountain range did Gilgamesh travel to in search of Utnapishtim?

Gilgamesh traveled to Mount Mashu in his search for Utnapishtim. In the epic, Mashu is a mythical mountain associated with the route toward the distant realm where the flood survivor lives.

After Enkidu dies, Gilgamesh becomes terrified of his own mortality. He abandons ordinary royal life, wanders in animal skins, and seeks Utnapishtim, the one human granted everlasting life after the great flood. His journey eventually brings him to Mashu, whose passage is guarded by terrifying scorpion-men.

The mountain is described in cosmic terms: its twin peaks reach toward the heavens, while its foundations extend toward the underworld. A tunnel through Mashu marks the path of the sun, and Gilgamesh travels through it in darkness before emerging into a wondrous landscape. He later meets Siduri and must cross the Waters of Death with Urshanabi.

Mashu is often called a mountain range in quiz summaries, but the epic’s imagery more specifically presents it as a mythical mountain or mountain gateway. It should not be confused with Mount Nimush, associated with the landing place of Utnapishtim’s ark in the flood narrative.