Took this while flying yesterday, to SLC.
The plane didn’t have the seatback console with which you can track your flight (or listen to Rumours over and over again; damn you, Delta – it’s not sufficient you transport me through the air across the continent in safety, I demand you entertain me while you do so!)
But using Flightaware, I believe this is the Wyoming Wind Energy Center, in Uinta. As of 2008, it was the largest wind-farm in the state. There are 80, 220-foot tall turbines, and the complex generates enough power for 43,000 homes.
Wyoming is an ideal place for serious wind-power generation - big spaces, not a lot of people.