This slide appears to have been triggered by the plow, or was a natural. I was not wearing ski gear when I drove by, but I did wallow up to my waist in sneakers to the toe to measure the slope angle. It was right at 30 degrees. It is a small slide, but one that I think is very interesting. You could see egg shell cracking for at least 100' on either side of the avalanche. And two pockets released together. Both of these things indicate how sensitive things are and the ability for the fracture to propagate. The very low slope angle is also interesting and rare, at least for the Wasatch. I'm nearly certain it slid on large surface hoar. I wasn't able to wallow any further to check for sure, but there was a distinct dark colored, facet-looking layer just above the bed surface all around the flanks and crown (see close up photo). This is a big red flag to me, especially for lower elevation terrain traps.
Observer Name
        Doug Wewer
  
      Observation Date
        Sunday, January 22, 2017
  
      Avalanche Date
        Sunday, January 22, 2017
  
      Region
        Ogden » Snowbasin Backcountry
  
      Location Name or Route
        Snowbasin Access Road 
  
      Elevation
            6,200'
  
      Aspect
        North
  
      Slope Angle
            30°
  
      Trigger
        Unknown
  
      Avalanche Type
        Soft Slab
  
      Avalanche Problem
        New Snow
  
      Weak Layer
        New Snow/Old Snow Interface
  
      Depth
        6"
  
      Width
            50'
  
      Vertical
            50'
  
      Comments
        Coordinates
        