Lets begin with some map images that can be referenced to find locations. The general travel was in from the east entrance, up the Yellowstone river, over to Madison, down to Old
not so Faithful then back up to Mammoth Hot Springs and out the north entrance.
In the beginning there was fire and ice. The Ice is still around. This set of pictures is from around Sylvan Lake.
The next set are from the Yellowstone Lake View Overlook
Buffalo along the lake
Yellowstone River just north of the Sulphur Cauldron
Pardon the sideways pictures, but this is artist's point, one of the most photogenic places in the entire park. It comes highly recommended and is probably the only major attraction in the park that is not dying.
More buffalo, along Fountain Flat Drive
The Old Faithful Inn, Closed for Renovation this year. Neat building
Geysers other than Old Faithful near Old Faithful. We missed Old Faithful due to its less than Faithful nature nowadays.
Buffalo on the drive back to Madison from Old Faithful
The rest of these pictures are from the Hot Springs formerly known as Mammoth. They are still impressive, however if you look at the dead ground, that all used to be hot springs. These springs are dying, and if you have any incentive to visit them, I would highly recommend that you visit soon. I visited ~10 years ago and there was at least twice as much flowrate and more covered area with live hot springs. See them soon before they are gone.
This next picture is the money shot, one of the best pictures from the entire Yellowstone Series.