unknown object in sky seen on photo taken during hike.Four of us were hiking to the top of Whipple Mountain outside of Telluride. I was taking photos of the scenery and wildflowers. None of us saw an object during the hike. During a review of the photos today after getting home, I saw a dark horizontal rectangular brown shape in the sky in one of the phones. After enlarging the photo, it appears that the edges of the object are indistinct and some sort of light-colored cylinder shape is arising from the brown cylinder. The Telluride airport is located nearby and we all had been watching planes takeoff and land during the hike. My husband, a former private pilot, cannot identify the object as possibly being aircraft.