The win is the sixth straight for the Mustangs.
Newell-Fonda got 16 points from Dillon Anderson and 12 points and four rebounds from Dalton Anderson. Andrew Temple added eight points and eight rebounds, Jake Hahn had seven points and seven boards, Brady Dicks had six points, and Rigo Johnson, Brady Bohe and Zak Sievers had two apiece.
The Mustangs were 0-of-10 from three but still finished 23-of-50 from the field. They made 9-of-12 at the line.
The Warriors struggled to knock down shots in all three phases as they finished 10-of-44 from the field, 1-of-7 from three and 4-of-21 at the foul line.
They were led by Titus Letzring's six points and four rebounds. Jayson Van Haaften and Jayden Van Berkum turned in five points and three rebounds apiece, and Zach Sliefert, Kale Nelson and Colton Ballantyne had three points apiece.
It was a bit of a chippy contest between the Twin Lakes rivals as both teams were whistled for 18 fouls apiece, including one ejection.
Alta-Aurelia drops to 3-6 with the loss and is off until the 4th of January when they host Southeast Webster. Newell-Fonda moves to 6-2 and will visit Hinton tonight.