Talus material discarded during quarrying of the shale litters the side of Fossil Ridge. X marks the camp site used by field teams. Emerald Lake (EL) is visible in the background.

The Walcott Quarry is the most famous quarry of the Burgess Shale, located in the Canadian Rockies of British Columbia, bearing the Phyllopod beds. This lies at the base of the Walcott Quarry member, and three other quarries – the Raymond, UE and EZ – lie above it. The quarry's proximity to the Cathedral escarpment led to the preservation of spectacular fossils.^[2]

• http://en.wikipedia.org/wiki/Walcott Quarry