thirteen three

[brend10]

Can you help me please...

The pilots had been riding through the Valley, although from the transcript of their in-flight conversations, it seemed they were somewhat uncertain and unconcerned as to excatly where they were.
“I don’t see anything over about thirteen three is the highest peak in the whole route I think,” said Rowe, the flight’s engineer.
thirteen threee... means what....
Can you explain thet part of the sentences to me.. If it's possible
Thanks

[Gillnetter]

Can you help me please...

The pilots had been riding through the Valley, although from the transcript of their in-flight conversations, it seemed they were somewhat uncertain and unconcerned as to excatly where they were.
“I don’t see anything over about thirteen three is the highest peak in the whole route I think,” said Rowe, the flight’s engineer.
thirteen threee... means what....
Can you explain thet part of the sentences to me.. If it's possible
Thanks

The highest mountain was 13,300 feet high. A peak is the top of a mountain.

The sentence is written incorrectly. It would be better this way, "I don't see anything over about thirteen three, that is the highest peak in the whole route, I think..."