The older alluvium is estimated to be Pleistocene age.
The sands are of Pleistocene age and thought to be aeolian (windblown) coversands.
The last eruption took place during the Pleistocene age.
It is believed The Sphinx last erupted in the Pleistocene age.
In this place the Pleistocene age enjoys a kind of eternal life.
Unlike many areas in North America, the mountain range did not see glaciations during the Pleistocene age.
Within the geothermal area older Pleistocene age buried domes have been encountered in drilling operations.
The limestone contains mammalian fossil deposits of Pleistocene age.
These youthful-looking dacitic flows have been dated to be of late Pleistocene age.
This flow pattern was deposited in the early Holocene or the late Pleistocene age.
