to unshod walking boots except for very wide crevasses as in large enough to
swallow a sno-cat (think Mawson's Will and his ponies breaking
through snow bridges). Then the ski gives you a false sense of security

I thought Mawson used dogs and got vitamin-A poisioning from their
livers.

Wasn't it Scott who tried ponies?

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These are my opinions, not necessarily my employer's. I hate spam.