Cascades, I believe.
The Cascade mountain range is the mountain range that goes through Oregon and Washington. The Cascade mountain range extends from southern British Columbia through Washington and Oregon all the way to Northern California.
Cascade mountain range in Oregon is one. The Rocky mountains are in the western half of the U.S. but are in the Mountain time zone
A row or chain of mountains ranged in a line is called a mountain range. A narrow gap through a mountain range is a mountain pass.
A row or chain of mountains ranged in a line is called a mountain range. A narrow gap through a mountain range is a mountain pass.
A mountain chain is called a mountain chain.
Appalachian Mountains.
The Maghreb
Mountain Mike's Pizza is a chain with stores located in California, Nevada, Oregon, and Utah. See the related link below for a list of locations.
The difference between a mountain range and a mountain chain is that a mountain chain is a row of mountains and a mountain range is lots of mountains in one area.
Appalachian mountains
Carpathian Mountains
Rocky Mountains....right?