Ed, 

My guess is that it does exist still but not under a single 
ownership.  I found references to it in this website:  

http://www.semarnat.gob.mx/zacatecas/recnat/reldicta.shtml

Victor


--- In ranchos@yahoogroups.com, "Edward Serros" <ed@s...> wrote:
> 
> My grandmother was born on the hacienda Pena Blanca. Does anyone 
have
> any information on this hacienda and whether it exists in any form 
at
> present? Per birth records the hacienda had to be close to 
Valparaiso,
> Zacatecas. My guess is that it belonged to the Felguerez family but 
I
> am not certain.
> 
> Thank you.
> 
> Ed