South of Olympia, WA, hundreds and hundreds of mysterious earthen mounds cover the landscape. Stretching as far as the eye can see, these unusual geological formations have never been explained to the satisfaction of most who encounter them. Excavations into the mounds suggests that they are not burial mounds, or even man-made. The “mainstream party line” claims that they were either carved by glaciers, or (what?) created by gophers!
This mysterious landscape is well worth a visit if you’re travelling through Washington. Regardless of what formed these bizarre hillocks, you can’t help but feel closer to some kind of “other space” when you walk through.
More info: https://www.dnr.wa.gov/MimaMounds