The 6-6, 285-pound offensive tackle from Chapparal High School said he came away impressed with what he saw as he toured the campus and met with coaches at Auburn's junior day on Saturday.
"It was real good," he said of the visit to meet the 2010 national champs. "We went through all of the academics, all of the athletics--everything. It is a great place to be. It is awesome.
"Auburn was a lot more than I expected," he said. "It is a really cool school and I really liked it. The coaches are great and I love them. They are good guys. They all made me feel like I was at home."
"I met Coach Grimes my freshman year when he was the CU coach and that is definitely why I came down (to Auburn)," said Callahan, who is a prospect at left offensive tackle.
The class of 2012 prospect said that he has a "pretty close relationship and it is a good one" with Grimes, who is credited with doing an excellent job coaching the line at Auburn since being hired by head coach Gene Chizik prior to the 2009 season."
"They told me that they are really interested in me and I will probably be one of the next (scholarship) offers to be out," said Callahan, who noted that he has early scholarship offers from Michigan, Colorado, Arizona and Vanderbilt.
The lineman said he is open on his recruitment and that he is definitely interested in the Tigers. "They are a great school," he says. "It is a great place."