Another photo taken last month in Waterton Lakes National Park, in the south of Alberta, Canada.

Waterton Lakes gravel road

Waterton Lakes National Park, Alberta, Canada
Canon EOS 50D, 10-22mm @10mm, 1/200 sec, f/8, ISO100

I took three lenses with me to Canada - the 10-22mm, 24-70mm f/2.8L, and 70-200mm f/4L. I think the 10-22mm lens got the most use (including the photo above), and I kept a CPL filter on the 10-22mm lens most of the time too.