The military says it's investigating how the accident happened about 4:30 p.m. Wednesday on U.S. Forest Service land. Officials say four soldiers were in the helicopter during a routine training mission.
Fort Carson spokeswoman Danny Johnson described the incident as a hard landing. The military said in a news conference that the injuries are not life-threatening.
KMGH-TV reports that the Elizabeth Fire Department responded shortly after the accident but initially had trouble finding the helicopter in the forest.
The soldiers were part of Fort Carson's 4th Combat Aviation Brigade, 4th Infantry Division.