CUSportsNation.com caught up with Mangham, who holds over 20 offers.
"I decided to go out there because the Colorado coaches were showing a lot of interest, and they wanted come out and see the facilities and what they had to offer," Mangham said.
Detroit isn't a fertile recruiting ground for the Buffaloes as they don't have a single player from the state of Michigan on their roster. However, they're targeting Mangham from Cass Tech H.S. in Detroit, Mich.
"It does mean a lot that they would offer me and they really don't recruit in Detroit," the 6-foot-1, 185-pounder said. "It means a lot. It shows that they had a lot of interest in me."
Mangham received the offer from Colorado after he impressed the coaching staff.