2470 metres or 2470 metre summit

[JEic]

a) I reached the 2,470 meters summit in about four hours.

b) I reached the 2,470 meter summit in about four hours.


I want to say I reached the top of a mountain and its height is 2,470 meters. I think there should be no "s" in "meter" because there is only one top, but I am not sure.

 

[Barque]

The second sounds better, I agree.

It doesn't sound very likely to be used in casual speech however, only in somewhat formal or formal speech or writing.

In speech I'd expect to hear "I climbed it in four hours. It's 2470 metres high."

 

[SoothingDave]

It's not that there is only one top. It's that, when we use measurements as adjectives we use them in the singular.

It's a two-meter fence. A six-inch sub. A 35-yard touchdown pass.

 

[Barque]

It's not that there is only one top.

Yes, good point. I missed that.

 

[emsr2d2]

@JEic Also note SoothingDave's use of a hyphen. In your sentence, it would be "the 2,470-metre summit".