MISSOULA — Bozeman High School senior Mack Anderson signed his National Letter of Intent on Wednesday afternoon, making his commitment to Montana men’s basketball official.

“Just knowing that it’s really a thing now and that it’s not just saying I’m committed, it’s kind of like — it’s not like I’m there yet — but it’s like I’m part of the family,” Anderson said in a phone call with 406mtsports.com.

A composite two-star recruit, Anderson signed during a lunch-time ceremony alongside others athletes at his high school. It was the first day of the early signing period for basketball, which runs from Nov. 8-15.

The 6-foot-8 versatile forward is the first Griz signee in the class of 2018. Montana currently has just the one scholarship available for next year’s incoming class.

Anderson is believed to be the first Montana men's basketball player to come from Bozeman High School.

"Any time you have an athletic post player out of Montana you have to get him," Griz head coach Travis DeCuire said in a news release. "He's a phenomenal kid with a ton of upside, and I think he'll be a fan favorite."

As a junior at Bozeman, Anderson primarily came off the bench and averaged 3.7 points, 2.3 rebounds and 1.7 blocks per game at the state tournament. He averaged 2.9 points, 2.9 rebounds and 0.9 blocks per game over the course of the season. His 1.72 points per field-goal attempt was the fifth-best scoring efficiency in the state.

He's expected to take on a starting role this year and can play small forward, power forward and center for the Hawks.

Anderson committed to the Griz on Sept. 4 to cap a 51-day recruiting stretch that started because of his strong AAU season with Montana Elite. Before that, he had been mainly talking with NAIA schools.

"As the summer went on, he kept getting better," DeCuire said. "I like his athleticism and agility. He's a guy who can be versatile inside and out. He has a thin frame, so I don't know how much weight he can carry and how much of a power player he can be, but I think he's a versatile athlete, and those guys are hard to come across.

"Not very often do you get a 6-foot-8 athlete who can run and jump and ball a little bit. We're excited about what he presents in the future."

Anderson chose the Griz over offers from Montana State and Air Force. He spoke and visited with Boise State and Denver, and he talked with Washington State, Idaho, Portland, South Dakota and Colgate, although none of those schools made official offers.