In the prairies virtually Olympia , inward Washington , inward northwestern U.S.A. , thousands upon thousands of grass-covered humps bulges out of the basis similar an enormous bubble wrap. These humps are called mima mounds , named later the Mima Prairie , in addition to they hit inward size from virtually imperceptible to to a greater extent than than 2 meters tall , in addition to several meters across. Since their regain past times Charles Wilkes , a United States of America naval officeholder in addition to explorer , inward 1841 , these mysterious mounds accept intrigued scientists in addition to provoked curiosity , speculation , in addition to debate.
Wilkes initially idea that the mounds were graves of ancient Indians exactly when he ordered his men to dig upwardly , they constitute no bones. We directly know that these mounds are thousands of years former exactly nosotros withal don’t know who or what created them. Over the years dozens of theories accept been advanced implicating everything from earthquakes to glaciers to gophers to fifty-fifty aliens.
These Mysterious Mounds inward South America Are Made of Worm Poop
Oregon Live