The cherts were recovered from sediments outcropping near the contact of the Roza Basalts and the overlying Priest Rapids Basalts, designated the type locality, near the town of Beverly, Washington by Fred Brinkman of Sunnyside, Washington.
A number of extinct plants and insects were named in honor of Wehr including Osmunda wehrii, Wessiea yakimaensis, Pseudolarix wehrii, and Cretomerobius wehri.