5061. Info on Sonora Chihuahua state border in Mexico needed
      Those of you who study USA state borders may be aware of USGS Professional Paper 909, dated 1976, which contains a wealth of info about state borders and
      Dec 11, 2001 @ 00:31 - Andy Martin (Andy Martin <martin@...>)
5071. Re: Info on Sonora Chihuahua state border in Mexico needed
      andy good luck with this difficult search is all i can say unless you can deal with metadata in which case perhaps
      Dec 11, 2001 @ 07:28 - acroorca2002 ("acroorca2002" <orc@...>)