Wind River Valley, WY.
Hello All! Here is a 60×60-ish km terrain set in central Wyoming generated with GameRealisticMap. I present it mainly a gift to our community flyboys, so the focus is size and performance. However, there are a few areas that are wooded/detailed, as they can be, and loosely laid out towns. The buildings are not accurate. Again, not too much detail.
That being said, go out and enjoy! Fly, drive, bike, or hike your way across the land, and try not to get lost.