The Jewel Mountains are mountainous region on Krypton.
A thousand cycles prior to the present, Jo-Mon challenged many of his enemies to duels to the death atop the Jewel Mountains, defeating them all and creating a tradition.
- ↑ Welsh, Cameron (writer) & Donnelly, Ciaran (director) (March 28, 2018). "House of El". Krypton. Episode 2. Syfy.