Even in very remote parts of many national forests, at least in the lower 48, there are a myriad of old logging and forest service roads that are no longer used. As such you could truly be far away from any traffic yet near an old road which would skew some of their results.

The one for Oregon looks suspect as well.

If I had to make a gut call, I'd say somewhere between Lake Abert and Steens Mountain, or perhaps somewhere in the extreme southeast portion of the state. Those places all have "roads" though, I suppose. Not paved ones, but someone drove a truck back and forth in the sagebrush a few times, and it wound up on a map. Still, they are extremely remote.

Edit: interestingly enough, the McFurthest spot, linked in my other comment, is between Lake Abert and Steens mountain, albeit to the south, in Nevada.

Couldn't agree more. Their "most remote spot" in Vermont is right next to Stratton, not far from the border with Massachusetts. The Northeast Kingdom -- where New Hampshire, Vermont, and Canada make a tri-border -- is way, way, way more remote. Yes there are dirt roads crisscrossing it, but there are very few people and plenty of wildlife, old growth forest, etc.

Distance from a cell tower might be a good metric.

This is another fun way of looking at it:

http://www.datapointed.net/2010/09/distance-to-nearest-mcdon...

With a little bit less serious take on the trek to the spot:

http://www.datapointed.net/2010/10/the-farthest-place-from-m...

Just fyi the word is "jibe"

jibe 2 |jīb| verb [ no obj. ] N. Amer. informal be in accord; agree: the verdict does not jibe with the medical evidence.

Agreed. Based off my six years there: vinegar hill.