Onalaska took home team and individual honors at Tuesday's MVC Girls Golf Championships at Fox Hollow in Barre Mills.
The Hilltoppers shot a team total of 332, which was 8 strokes better than second place Aquinas at 340.
Tomah took third with a 360.
Erin Ericson and her teammate Katie Chafoulis shared medalist honors after shooting 79.
Onalaska ended up winning the season MVC title as well with Aquinas second.
Ericson was also earned MVC Player of the Year honors.
"I think it's really great. We worked really hard this summer and it's really nice to see that paying off for us," said Chafoulis.