Having responded to the incident, the scene stuck with LMRFD paramedic Bruce Keller.
"It was pretty chaotic," Keller said. "It could have been a lot worse."
The firefighters and paramedics met DPS personnel on the scene, who were trying to establish order.
"There were a lot of bystanders that stepped in to help," Keller said. "A lot of off-duty medical personnel that were doing what they could."
A man who identified himself as a doctor had already laid out preliminary triage at the scene, Keller said. Six victims were pronounced dead at the scene.
Six helicopters from throughout the tri-state were dispatched to the scene to airlift the injured to medical and trauma centers. "There was a couple that could have gone by helicopter, but we ran out," Keller said.
A seventh person died at University Medical Center in Las Vegas.
Five additional victims were transported by ground ambulance to Kingman Regional Medical Center and Las Vegas.
Firefighters and paramedics from the Golden Valley Fire Department later joined the Lake Mohave Ranchos Fire District at the scene.
The fire district and other agencies that responded to the scene will meet today, Keller said.
"We'll go over what went good and what didn't go good," Keller said.