[meteorite-list] intriguing Question

[Peter A Shugar]

Hello,
I'm the newbie, so please explain this to me. This is an intriguing question.
I can't figure it out. I know the Sahara desert is about a galgillion square miles.
Then there are the deserts in Calif., South America, the Antarctic continent
and God only knows where else. Why don't I see any meteorites from the
Gobi desert, or maybe the Mongolia desert.
And then there is little dinky Roosevelt Co, NM at just 2,455 sq miles and it has a 
staggering
109 meteorites, which comes to one for every 22.5 sq miles. What gives?
They are of a wide variety of classifications, so it can't be turning every piece in
for classification. I can't speak for anyone else, but I find this very puzzling.
Any thoughts, List?
Pete