But then again, how many of us were looking at his place as the burial site? I remember tons of discussion about Yellowstone, sand dunes and dump sites around Rexburg, cabins and campsites in Utah, any number of desert areas in Idaho, Utah, Nevada, Arizona, and even off-road sites Alex would have known about from his trucking and waste disposal jobs anywhere between Arizona and Arkansas, but I can't recall a single person ever mentioning their own back yards as a possibility. I think that was the last place any of us would have thought of, especially since Tammy was still alive and living there at the time along with other family members. Chad's place, hiding in plain sight underneath the noses of all his unsuspecting and innocent family members, was a rather clever place to try and hide them.
In the end it was the cell data which gave them away. If it weren't for the cell data placing Alex on the property immediately after their disappearances, and Chad's mention of killing and burying the raccoon at the family pet cemetery, I believe we'd still be looking for the kids. And, with all due respect, that same cell data would have also likely pinpointed those other 'smarter' places that you suggested, if they had buried them there. Their 'stupidity' (thankfully) was in keeping their cell phones with them and turned on, and trying to create and text a cover story to others, while they committed the crimes. Their digital trail led LE right to the children. MOO.