Postern Mountain
Postern Mountain is a  mountain located on the SE side of Mount Robson Provincial Park in the Canadian Rockies, British Columbia, Canada. It is a part of the Ramparts range and is adjacent to Geikie Creek, a small stream connected to the Fraser River. It is notable for its steep cliff faces and abundance of quartzite, unusual for the majority-limestone mountains that surround it. These factors make it, along with the rest of the Ramparts, an attractive destination for mountain climbers. References 

Cariboo Land District
Two-thousanders of British Columbia
Canadian Rockies
Mount Robson Provincial Park