Today was another great day in the park.  We headed south this morning to see the upper and lower falls.  We saw old faithful and the Norris geyser basin.  Looked at some mud pots, terraces, and enjoyed the smell of hydrogen sulfide gas.  The sites were amazing and it was really cool to see the power that an underground volcano can have on the surface. Overall it was a fun day visiting some of busier tourist attraction sites which were fairly quiet this time of year.  Never got to see a bear this trip, but I will return to Yellowstone to do some off trail hiking to find a grizzly and enjoy this place.