Castle Mtn, Alberta

Castle Mountain, Banff NP, Alberta, Canada 2,766 m (9,074 ft.) “Castle Mountain is noteworthy because it is the eastern-most mountain of the Main Ranges in the Bow Valley. The rock is PreCambrian and Cambrian in age and the rock layers are relatively horizontal. The Castle Mountain Fault has thrust the older (400-600 million years) limestone which forms the cliffs and underlying older rocks over younger (200 million years) rock which has eroded and forms the tree-covered, gently sloped base of the peak. This fault defines the boundary between the Main Ranges and the Front Ranges and can be traced throughout Banff and into Jasper National Park where it passes between The Palisade and Pyramid Mountain, just east of Jasper Townsite.”.---from Peaks of the Canadian Rockies website at http://www.peakfinder.com/peakfinder.asp?PeakName=Castle+Mountain+%28Alberta%29 Picture taken mid-September 2011