Clark,
I too recently saw Lone Survivor and thought the same thing: those peaks can't be in New Mexico.
I was thinking somewhere in the Middle East or Maghreb?
FWIW, I watched the bonus parts of the DVD and there wasn't any mention of special affects for the mt. scenery or foreign filming locations. Then again, I could have missed something. Google seems to be coming up short, ditto for the official movie site, hopefully someone out there might have an answer?
Best,
JM
UPDATE, also this:
http://www.historyvshollywood.com/reelf ... rvivor.php
Where was Lone Survivor filmed?
To replicate the rugged Hindu Kush mountain range of Afghanistan's Kunar Province, the filmmakers headed to New Mexico, filming on location in the Sangre de Cristo Mountains of the Santa Fe National Forest. Portions of the battle and the sets for the Shah village and the Pashtun village were recreated on the less treacherous terrain of Chilili, New Mexico. Additional filming took place on Kirtland Air Force Base in Albuquerque, as well as on soundstages at Albuquerque's I-25 Studios. -Production Notes