Yes, the Arctic tundra does have mountains. In fact, some of the most dramatic and iconic landscapes of the Arctic tundra are mountainous.

Here are some examples:

* The Brooks Range: This mountain range is located in northern Alaska and is a major part of the Arctic tundra. It's home to the highest peak in the Alaska Range, Denali (formerly Mount McKinley).

* The Scandinavian Mountains: These mountains stretch across Norway, Sweden, and Finland, with parts extending into the Arctic tundra. They are home to glaciers, fjords, and diverse wildlife.

* The Ural Mountains: This mountain range runs from north to south across Russia, with some parts reaching into the Arctic tundra.

While the Arctic tundra is known for its flat, treeless landscape, there are also significant mountainous regions that contribute to its unique and diverse ecosystem.