Remote sensing is usually sattelite or arial photography I believe, sticks bending is called dowsing.
Interesting find, the article is a little vague on a few things, but that makes sense considering they have only unearthed 5% of it so far.
I am a little confused about the red soil myself, they said they found burned timbers in a trough around the red soil pit, and yet there was very
little ash found to suggest that the soil wasn't burned there? I'm confused, could it be that whoever burned the soil shoveled out the trough after
each time they burned? I'm sure it was significant to whoever did whatever at this site, it just seems odd to have a burning trough and burnt soil
and not have them connected.
There is a bit more info here, scroll down to the aprill 23rd and 16th entries for this find.
www.ohio-archaeology.blogspot.com...
They have some pictures of artifacts recovered nearby as well.
Pretty cool, we seem to find more and more sites everyday through the use of newer technologies.