
Lance Motta-Vilensky It was during the late Pleistocene Period. Wooly mammoths, bison and giant ground sloths were grazing in the peaceful Pinyon-juniper woodland forest of the Colorado Plateau in northern Arizona. They were having a nice day, blissfully unaware that a 130 foot wide, 300,000 ton meteorite was hurtling towards them at about 30,000 miles…