Yup...it happens to me a lot of times, having the wrong settings, but nice picture still.
Here's a B&W of Lower Falls at Yellowstone.
http://farm9.staticflickr.com/8294/7...995711f6e2.jpg
and one of Grand Teton
http://farm9.staticflickr.com/8167/7...8d6794b0f0.jpg