Flowers and notes were left outside the school right after the May 18 shooting that killed 10 people and injured 13 more.
After the shooting, a man from Chicago placed 10 crosses with red hearts at the site. The crosses bear the name of the eight students and two teachers who died.
Balloons, flowers, teddy bears and other mementos also surrounded the area.
On Wednesday, only a few items remained. Families have been told to take home what was left for the victims.
A group of parents was there to support the families as they took down the tribute.
The district is planning a permanent memorial for the campus.