As the ice sheet moved across the land, it scooped great U-shaped river valleys, deposited rock and sediment, and carved the rugged peaks of the Cascades.
(the ice sheet; moved; across the land) (it; scooped; great U-shaped river valleys; T:As the ice sheet moved across the land) (it; deposited; rock and sediment) (it; carved; the rugged peaks of the Cascades)
the ice sheet it it it
moved scooped deposited carved
across the land
great U-shaped river valleys T:As the ice sheet moved across the land
rock and sediment
the rugged peaks of the Cascades