ninety-six-mile/ninety-six mile border

[Kraus]

Hi everybody!

I've got a doubt about the use of hyphens in this expression: "the ninety-six mile border".
Shouldn't it be "the ninety-six-mile border"? I think it should be like that because "ninety-six-mile" is an adjective here.

Thanks in advance for your help

 

[Hau Ruck]

Hyphens are very often used incorrectly. Both in over use and a lacking of. It very well could be that your source got it wrong. I've seen many publications get hyphens wrong

I'd say you are correct. Each of those words are compound modifiers of the noun. So, if I were asked, I'd say you are correct. That is my opinion/background talking though

As I understand it, each word that is a compound modifier, leading up to the noun, gets a hyphen

 

[Parla]

You're right.

 

[Kraus]

Thank you both very much!