Two people were killed and a third was injured when a U.S. Civil Air Patrol plane crashed in Colorado's Front Range Saturday morning.

The small passenger plane with three people aboard crashed near Storm Mountain and Palisade Mountain west of Loveland around 11:15 a.m., according to the Larimer County Sheriff's Office. The plane belonged to the Civil Air Patrol, the civilian auxiliary wing of the U.S. Air Force, and was on a routine aerial photography training mission when it went down, officials said.

Pilot Susan Wolber and aerial photographer Jay Rhoten were identified by CAP as those killed and co-pilot Randall Settergren was identified as the person injured. Settergren was airlifted to an area hospital by a National Guard helicopter, where he is undergoing medical care.

"The volunteers of Civil Air Patrol are a valuable part of the Department of Military and Veterans Affairs, and the lifesaving work they do on a daily basis directly contributes to the public safety of Coloradans throughout the state," Maj. Gen. Laura Clellan, adjutant general of the Colorado Department of Military and Veterans Affairs, said in a statement Saturday.

"We are devastated to hear of the loss of Susan Wolber and Jay Rhoten, and the injury of Randall Settergren, during a training mission in Larimer County. Our thoughts and deepest condolences are with the families of those involved in the crash," Clellan continued. "I would also like to thank all of the first responders who assisted with rescue efforts."

Palisade Mountain is in Larimer County, about 20 miles west of Loveland and about 65 miles northwest of Denver. The area is part of the burn scar of the Alexander Mountain Fire, which burned almost 10,000 acres in over two weeks this past summer.

The crash happened about 200 feet below the summit of Palisade Mountain in an area that includes tall trees and steep hills as part of the mountain range. Rescue crews were heard on radio traffic working to find a landing zone for rescue helicopters. No structures were impacted by the crash.

The plane crashed in "very rugged" and "extensive and rocky terrain," Ali Adams, a Larimer County Sheriff's Office spokeswoman, said at a news conference. First responders had to hike out to the site and the sole survivor was "severely injured" when responders finally got to them.

Rescue efforts were ongoing at 3:15 p.m., according to Adams, and recovery efforts for the two deceased people's bodies could take several days.

Several agencies responded, including the Loveland Fire Rescue Authority, Thompson Valley EMS and the National Guard.

The Larimer County Sheriff's Office is the lead agency investigating the crash and the Federal Aviation Administration and National Transportation Safety Board will assist, according to Adams. The NTSB said it too was investigating the crash and identified the plane as a Cessna 182.

"This is one of those incidents that is really low frequency; it doesn't happen really often, but unfortunately, our first responders have had more than their fair share of responses," Adams said.

George Solheim lives in the area of the crash. He described conditions as "extremely windy" on Saturday and heard the plane just prior to the crash. He says he could hear "loud 'throttle up/down' immediately prior to sudden silence at (the) time of (the) crash. Couldn't hear sounds of impact from here."

Colorado Gov. Jared Polis extended his sympathy to the families of the victims in a statement Saturday evening:

"I'm saddened to hear of the loss of two dedicated Civil Air Patrol members, Pilot Susan Wolber and aerial photographer Jay Rhoten, who lost their lives in today's crash and my thoughts are with their families, friends and colleagues. These individuals, along with survivor co-pilot Randall Settergren, who was injured, served the Civil Air Patrol as volunteers who wanted to help make Colorado a better, safer place for all. The State of Colorado is grateful for their commitment to service and it will not be forgotten. I also want to thank the first responders who assisted with the rescue and recovery efforts."