How can I get to the northern-most part of Ortan Fields?

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I'm trying to figure out how to get to the area indicated with the white arrow. There's a ledge where the red line is that appears to be too high to jump up.
Is there a plan later that lets you jump higher? Am I missing something obvious regarding teleporters?
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How to find, and access, unexplored regions and unclimbed ski peaks in Antarctica, by Phil Wickens
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