Both ranges slope north towards flatlands south of the Sevier Lake region, (southwest Sevier Desert), and San Francisco Mountains. The south flank of the Star Range lies at the northeast perimeter of the Escalante Desert; Milford Valley, the site of Milford and a north-flowing stretch of the Beaver River (Sevier River), lies adjacent, and east of the range, a narrowing valley stretch with the Mineral Mountains bordering to the east.