noun
ravine
ruh-VEEN/rəˈviːn/
A deep, narrow valley with steep sides.
The ravine has steep rocky sides above a narrow stream.
Etymology
Latin rapina meant “plundering”; the related French word also described rushing water, with its sense influenced by Latin rapidus, “rapid.” The name then applied to the deep gorge worn by that water.
In context
she was four-wheeling in the mountains in Colorado and uh the brakes started going out on the fourwheeler and they were headed for a deep ravine