Columbus High School is the site of the GNAC basketball tournament that tips off today. 

The Discoverers girls are the number 3 seed and will meet fourth-seeded McCook at 5:30 p.m. in the CHS Main Gym.  The Columbus High boys are seeded fourth out of six teams and face number 3 seed North Platte at 7:15 tonight on the same court. 

The conference tourney will continue tomorrow and Saturday.