what are intermontane basins
From Wiki.GIS.com. 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.