Had a successful overnight hike to Whitney June 18-19, reaching the summit on the morning of the 19th. We camped at Horsehoe Meadow on the 17th, which proved to be necessary, as we experienced minor altitude effects upon arriving there, and then here and there during various points on Whitney. The mules and maintenance were on the trail as we started to Trail Camp, so we were dodging dumplings, but that wasn't bad. We started at 3:30am from Trail Camp hiking the switchbacks to an incredible sunrise. The cables had snow remaining still but a full path is clear and passable, and the snow field at the top had a skinny path through it. Made it fine with no equipment in darkness. Only two other hikers there when we reached the top. It was 32 on the summit in the morning, and there was a steady wind, so it was pretty chilly. I will post an entire trip report on my blog soon. It was an unforgettable experience.