I grew up in bear territory and my father was a park ranger for 40 years. Bears would not chase for 5 miles, nor would they circle a tree like she described. Unless she produces a picture of the tree she climbed and the bear scratches on it, I am calling BS
LRC note: We have merged to threads on the same topic into one:
One was entitled "Some of the RW commenters don't believe the story about the DII runner hiding in a tree to avoid a bear attack, do you?" The other was called "Calling BS on this bear attack story ."