In geography, an intermontane is a feature that lies between mountains. The term refers to plateaus and basins formed by geologic processes. Intermontane plateaus are usually flat open highlands formed when land has been uplifted by tectonic activity. Basins are formed by run-off sediment from the surrounding mountains.

Throughout the western Americas the north-south cordillera is split into a coastal mountain range and one or two interior ranges. In between lie a series of intermontane plateaus. In North America, the intermontane plateaus are situated between the coastal ranges and the Rocky Mountains in the U.S. and Canada. This latter chain of mountains continues into Mexico as the Sierra Madre.

Examples of Intermontane features are:

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