Three units in eastern Oregon holding one of the most complete records anywhere of how mammals and climate changed together over forty million years, written in coloured ash layers. The Painted Hills are the famous view; the Thomas Condon centre has the fossils and a working lab behind glass. LOOK ONLY.
Mammals across 40 million years · Eocene to Miocene
This ground is protected. Photograph it, record it, leave it where it lies. On US federal land the Paleontological Resources Preservation Act 2009 makes collecting vertebrate fossils an offence, and penalties are real.
Other places on the map within a couple of hours.
