Two quick images for DDH 422. You can see how the Google imagery was updated recently (2012) in the right side of these images. The poorer quality, older imagery is from about 2005.
422 Snow chute
Angled view looking NE at DDH 422. The white polygon roughly outlines what appears to be a snow/debris chute. The slope of the chute area is about 45 degrees which isn't extreme but steep enough to transport ravelling material and snow.
GK zone can just be seen to the left. Schaft Creek Mineralized Trend shown with parallel wavey black lines.
larger http://www.flickr.com/photos/60356448@N04/7262508346/in/photostream/lightbox/
422 Snow chute