The infrared was mentioned on FB so its a "what if". Here is a link where they say it is 813 acres, not 2000 as another poster stated - which one is true? also, it states who was involved in search.
http://www.longislandpress.com/2013...sband-and-father-still-missing-after-7-weeks/
"
He joined about 60 others July 7, along with New York State Department of Environmental Conservation officials and nonprofit Long Island Search and Rescue, scouring 813-acre Oak Brush Plains Preserve at Edgewood in Deer Park. Savage also teamed up alongside about two dozen others handing out flyers and searching for clues and potential witnesses July 21 at Deer Park train station, which abuts the preserve."