Meet Iowa's 400,000-year-old Fossil
Hello, Iowa Pleistocene snail.Pictures: USGS Northeast Iowa holds a 400,000-year-old capsule. Instead of the large, glittering, the region is home to the finest of rivers and streams saved by the last ice age of the world. The leaf litter is attached to tube pipes near the surfaceBlue bluffs are always compact, quarter-inch an endangered bitch. ...