You will be given a definition of a task first, then some input of the task.
In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: The Northern and Central Bitterroot Range, collectively the Bitterroot Mountains (Salish: čkwlkwqin ), is the largest portion of the Bitterroot Range, part of the Rocky Mountains, located in the panhandle of Idaho and westernmost Montana in the Western United States. The mountains encompass an area of 4,862 square miles (12,593 km2).
 question: are the bitterroot mountains part of the rockies?
Output:
Yes