His e-mail address is firstname.lastname@example.org
Click on the word "More" at the very bottom of the article. Should give you a download of the map.
Checked and found the Lipan variety is a fit for all the U.S. pecan belt, except for the northernmost areas. If you have other questions would suggest you contact Dr. Tommy Thompson...
Please leave contact information and I'll be glad to help.
You might want to try this URL:
Thanks for pointing this out. The article has now been updated with the information you requested.