I was on my way home from las vegas when i had to use the restroom at boysen reservoir outside shoshone wyoming. after returning to my vehicle i realized that i had locked my keys in the truck. i called my wife to bring me the extra set of keys. i was less than 90 miles from my house. it would take her around 90 minutes to get to me. i snapped a couple of photos of the lake and sent them to my son. it was around 3pm. my wife arrived and was home around 7pm. i downloaded the pictures from my phone into the computer about 15 days later. when i looked at then on the screen something caught my attention on the right side of the picture a little over halfway up. i enlarged it and was not sure what i was looking at. i asked my wife to come look at it at normal size. she said "i see a lake and a ufo".I enlarged it and we both studied it and can not explain what we were looking at.I am retired usaf and after 20 years of service i can't remember seeing anything that looked like it. at the time i took the picture i did not see or hear anything. i would greatly appreciate any information that you could give regarding what this is. i am at home almost everyday. thank you in advance!!