MTN News has also learned that because the memorial was for a longtime Flathead Valley firefighter there were members from several agencies and fire departments there, and if not for their quick action, the outcome could have been much worse.
Six people injured were transported by air ambulance.
In this image taken Saturday, June 17, 2017, debris is strewn about at the scene where a second-story deck collapsed at a lodge near Lakeside, Mont.
Authorities say 14 people were taken or drove themselves to a hospital after the second-story deck of a Montana lodge collapsed during a memorial event for a firefighter.
"Our operating room was busy all night", spokeswoman Allison Meilicke told the Missoulian.
Fourteen people were taken to local hospitals, Lake County Sheriff Don Bell told ABC affiliate KFBB-TV. He says that the cause will be determined by the insurance investigator.
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The people injured ranged from 3 years old to older than 80, Lakeside/Somers Fire Chief Tom Havens said.
"When I first got on scene I saw injured people", he told NBC Montana.
Somers' Fire Department said the second story deck collapsed around 4 p.m. and fell a total distance of 15 to 20 feet.
Two camps were scheduled the week of June 18, according to Glacier's website: a junior high camp and a horse riding camp.
The incident occurred at Glacier Camp in Lakeside, a "Christ-centered" retreat location, according to its Twitter bio.