If BossTom's conections are booked, I got my first Rio's in Texas with Buck Thompson at:
C & S Cattle Company
Route 30
Breckenridge, Texas
(254) 559-1758
This year I am heading to Oklahoma. Both trips were set up with Tim Herald.
http://www.grandslamhunts.com/ He helped me to complete my first slam.
Jeff Harm
http://mywebpages.comcast.net/bearmt/BEARMT.htm