"Allen Thomson" <thomsona@flash.net> wrote

Nope, it's the other way around: the ANFO charge weighs 700 tons and
has a yield equivalent to a touch less than 600 tons of TNT.

http://www.washingtonpost.com/wp-dyn/content/article/2006/03/30/AR2006033001735.html

OK.  I hadn't seen the WashPost article and may have overlooked it in the
LVRJ stories.  In that case, 'Lots of trucks' seems logical.  It would also
seem the actual use of such a device would be in an area without
'un-friendlies' around.  I would guess (hope) the test is not modeling for a
nuclear device.  Crossing that line, more like a chasm, would open a
Pandora's Box of bad things.

I'll second miso on the location.  The BEEF in Area 4 seems to be the spot.
Although there were some atmospheric tests there in the late '50s (one
article quoted an NTS spokesperson as saying the area had no radioactivity)
the area around the facility may be clean.  My other guess would be Area 17,
just to the west.  No atmospheric tests were done there.