A heavily eroded arid region of southwest South Dakota and northwest Nebraska. It is known for its colorful rock formations and prehistoric fossils. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
pl.n. Barren land typically having rough, deeply eroded terrain. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.