RSBM
Phew. Just caught up! I believe a price of entry to a WS discussion is to catch up on all previous posts, no matter how far behind you start out.
@RickshawFan, I agree with you, although I notice we may be in a minority thought camp. I realize LE has stated foot prints were found that could match the family unit but we don't know where exactly and for how long down which trail. Until we do, I believe we'll keep debating this. But here is what I think on this particular point.
This couple is clearly bright, devoted to their family and each other, experienced hikers, and familiar with brutally hot terrain (e.g. BM, Gobi). So the only way I can fathom why they were where they were on such a horridly hot day is they had only planned a short outing... perhaps a 3L bladder worth of hiking for four, so an hour?
A one hour hike, say between 8am-9am, could fall within the realm of reason given the quickly rising temperatures, the terrain, a small baby and a long haired dog.
And that is why I agree with you. It appears to me they may have only gone the 1.5-2.0 miles from their truck, perhaps a little further down the Savage trail than where they found. That would provide them some nice vistas, some aerobic exercise and fun activity for the babe and dog. But IMO something went terribly wrong after they turned around or caused them to turn around even sooner than planned. I suspect it was first the poor dog per that video of a Golden someone posted up thread.
If the dog refused to move any further because of hurting paws, heat stroke, dehydration, etc. that could have been the anchor that set off a catastrophic cascade of events.