Irwin is also listed as the designer of 9 soon to be 18 at Towa in New Mexico near Black Mesa. I didn't play there when I visited NM last year. Maybe Adam Clayman can help on this course.
From
www.towagolf.com Situated in beautiful Northern New Mexico and complimented by splendid southwestern terrain and stunning desert sunsets, the Towa Golf Resort caters to those who are looking for an outstanding golf experience.
Designed by Hale Irwin and William Phillips, the course utilizes the natural topography and unique natural rock and piñon trees indigenous to the area. Whether you are an experienced golfer or a high handicapper looking to sharpen your skills, the Towa Golf Resort offers golfing excitement for everyone.
The twenty-seven holes currently open are the Boulder Nine
(Par 36, 3640 yards - Phillips design)
the Piñon Nine (Par 36, 3615 yards - Irwin design)
and the Butterfly Nine (Par 36, 3380 yards - Phillips design)
The next 9 holes, scheduled to open are the Valley Nine
(Par 36, 3575 yards - Irwin design).