We climbed Whitney in summer 2000 and for years I had this same (daytime) panorama up on my wall, taped together on a cardboard backing (this was pre-digital camera).
The trail to Whitney is possibly the single most crowded backcountry trail I have ever experienced, particularly given that it is 22 miles round-trip with 6,000 feet elevation gain. I'm sure we encountered over 100 people that day. The lack of oxygen at the top is fierce - I felt like I was taking 3 breaths for each step. Still, a fantastic hike!