Notch Peak, Utah, USA

Photo (c) Matt Affolter, used by permission (fair use policy)
Notch Peak is part of central Utah's House Range. Its enormous, richly fossiliferous limestone cliffs are composed of Cambrian and Ordovician strata. Most of the cheap trilobites you'll find at any rock shop, the small, dark, compact species Elrathia kingi, come from mines in this area. But many other fossils occur here too, as detailed at the Fossil Museum site.

