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The JOSE  VASQUEZ  BORREGO Spanish land grant, located in South Texas, has been in place since the 1760s (over 250 years) according to the New Guide to Spanish and Mexican Land Grants in South Texas by Galen D. Greaser.  Jose Vasquez Borrego proved his worthiness as a land grant recipient by providing the first ferry to cross the Rio Grande River.  “Hacienda de Nuestra Senora de los Dolores,” the name of the original land grant from Spain now referred to as  “Rancho Dolores,” encompassed over 275,000 acres in what are now Webb and Zapata Counties.

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The east corner monument for the original Jose Vasquez Borrego land grant is an intact and naturally occurring hill.  This hill, known as “Toro Hill”, is located on what is now known as the Jacalon Ranch.  Each survey completed on lands on and around the original Jose Vasquez Borrego land grant uses “Toro Hill” as the east ‘corner’ or monument.  The ability to repeat the survey process on lands in this area requires the use of this same corner monument.