Sand-mining operations in Michigan have uncovered a true forest primeval—a 10,000-year-old spruce woods buried in sand.
The trees probably died after being flooded by retreating glaciers at the end of the last ice age, says Kurt S.
Sand-mining operations in Michigan have uncovered a true forest primeval—a 10,000-year-old spruce woods buried in sand.
The trees probably died after being flooded by retreating glaciers at the end of the last ice age, says Kurt S.