Appalachian Mountains
The Appalachian Mountains ( or ˌThere are at least eight possible pronunciations depending on three factors:
  1. Whether the stressed vowel is eɪ or æ,
  2. Whether the "ch" is pronounced as a fricative ʃ or an affricate tʃ, and
  3. Whether the final vowel is the monophthong
    A monophthong is a pure vowel sound, one whose articulation at both beginning and end is relatively fixed, and which does not glide up or down towards a new position of articulation....

     ɨ or the diphthong
    A diphthong , also known as a gliding vowel, refers to two adjacent vowel sounds occurring within the same syllable. Technically, a diphthong is a vowel with two different targets: That is, the tongue moves during the pronunciation of the vowel...

     i.), often called the Appalachians, are a system of mountains
    Mountain range
    A mountain range is a single, large mass consisting of a succession of mountains or narrowly spaced mountain ridges, with or without peaks, closely related in position, direction, formation, and age; a component part of a mountain system or of a mountain chain...

     in eastern North America
    North America
    North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...