Cpl. Joshua Chacon, videographer, Combat Camera, is a hiker and climber from the Chicago area and enjoys exploring Joshua Tree National Park. He hopes to reach the peak of the Sierra Nevada mountain range Mount Whitney, which is also the highest summit in the Contiguous United States. (Official Marine Corps photo by Cpl. Julio McGraw/Released) - Cpl. Joshua Chacon, videographer, Combat Camera, is a hiker and climber from the Chicago area and enjoys exploring Joshua Tree National Park. He hopes to reach the peak of the Sierra Nevada mountain range Mount Whitney, which is also the highest summit in the Contiguous United States. (Official Marine Corps photo by Cpl. Julio McGraw/Released)