This image was taken Sept 1, 2007 10:59 AM, above Mckenzie Lake. Note the vapour trail behind the jet. Conditions were overcast.
Photo information:
Camera - Canon EOS Rebel Xti
Shutter Speed 1/500 sec
Lens Aperture F/11
Focal Length 300 MM
ISO - 200
The camera was set to Automatic focus
Just for a little contrast, here is a picture of a Fed Ex cargo jet taken later in the day when conditions had cleared. Also the Fed Ex jet was a bit closer (and larger).

Here is a pair of the Jets but they were pretty far away, I figure they were above Sundance when the photo was taken. The overcast conditions didn't help.
Photo taken Sept 4, 2007 4:27 PM

This image captured on Sept 5, 2007 10:25 AM above Mckenzie Lake is the first one I have where they are heading out on a mission instead of landing. There were two of them but I only managed to get a photo of the last one. They really move fast.