What’s the definition of mountainous vs. non mountainous terrain?

[Russ]

"All continental airspace west of the Rockies"

Except the central valley of California.

 

[SouthTex]

Does it matter?

 

[IP076]

Actually, as far as MEAs, MOCAs, and Grid MORAs are concerned, I think the Jepp Intro defines Mountainous terrain as an area thats elevation is more than 4000' msl.

 

[LearLove]

"What’s the definition of mountainous vs. non mountainous terrain?

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How do they classify this."

Mountainous = Big Rock

NON-Mountainous = Little Rock

Both are hard and will kill you just the same. Good question though.

 

[SiuDude]

............

 

[SiuDude]

The official definition of mountanous areas is specified in FAR 95.