Inland Empire[ĭnˈlənd, -lăndˌ]
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A region of the northwest United States between the Cascade Range and the Rocky Mountains, comprising eastern Washington, eastern Oregon, northern Idaho, and western Montana. Farming, lumbering, and mining are important to the area.