At Tunkhannock, Mike Fanelli hit 6 of 7 from the free-throw line in the fourth quarter as No. 3 Mountain View held off No. 2 Lackawanna Trail for a semifinal win.
Preston Petts scored eight of his 14 points in the second quarter as the Eagles outscored Lackawanna Trail, 16-2 to take an 18-point halftime lead.
Ryan Henke added 11 points for Mountain View.
Richard Helbing scored 17 points for Lackawanna Trail, Nico Berrios had 16 and Josh Rzucidlo had 15.