Hi Greg,
Good to hear that you're enjoying 'Dances with marmots'. smile

Checked out that link - Wow! Heather is a dynamo! What a tough lady she must be, mentally as well as physically. Good on her. Knocking out 40-50 miles a day every day for two months over that terrain takes some real inner strength.
Here's another link that relates to her and Josh Garret another 'ultra' hiker..
http://espn.go.com/sports/endurance/story/_/id/9629683/endurance-
sports-josh-garrett-heather-anderson-master-pacific-crest-trail

Surprising the barriers the human animal can break when it starts thinking 'what if...'
Great stuff!
Cheers, George

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Dances With Marmots