: While they line up, they are geologically distinct; the Cascades are mostly volcanic, while the Sierra Nevada is carved from igneous rock. "Chain of Mountains" in Media and Literature
: A larger system formed by multiple long chains of ranges.
: A specific zone where crustal deformation has occurred, such as the Appalachian-Caledonian belt . Notable Examples
A mountain chain consists of multiple summits arranged in a line, often sharing the same geological origins and age. They are usually the result of (mountain building) caused by tectonic plate movements.