This geographic region, covering parts of Utah, Oregon, Idaho, California, and the majority of Nevada, is unique hydrologically as all precipitation either drains internally or evaporates into the atmosphere. Bounded by the Wasatch Mountains to the east, the Snake River to the north, and the Cascade and Sierra Nevada Mountain ranges to the west. For 10 points, name this geographical region, the location of Utah's Great Salt Lake, named for its lack of an outlet to any oceans.
a) Great Plains
b) Intermountain West
c) Appalachian Mountains
d) Rocky Mountains