[sci.space] Martian enigmas in back issues of SPACE digest

GRAHAM@IUCF.BITNET (07/20/89)

While reading some postings from SPACE digest, I noticed a
couple of references to the enigmatic structures
(city, face) on Mars.

My question is: Have these structures been discussed at any length
on this digest, and if so, in what volumes may I find them?

Thanks in advance,
GRAHAM@IUCF