in short - not the panacea you seek
they work best when surveying small areas [ < 2 acres ] to confirm the presence of building foundations and walls / trenches
the area of the alledged " dulce DUMB " is vast and imprecise
lastly , should nothing be seen on the plots , bleivers would simply claim " the base si sheilded " or such
if you want to conduct an indepth < pun > seach - find the enterence .
the " its obscured by holographic projectors " excuse is utter twaddle
as small team of surveyers on foot , horse back , and trail bikes could make a mkI eyeball recce of every metre of possible locations in a matter of days
hint - the alleged enterance is at the end of a road



