It's been quite some time since I climbed this route, so hopefully others will add details...
Mostly 4th class climbing with a couple sections of up to 5.4. A fun, easy, and accessible peak for the aspiring alpinist.
Descend to the SW down loose talus.
Location
From Whitney Portal (7,900'), follow the Meysan Lakes drainage (marked trail) SSW towards Little/Lower Meysan Lake (~10,000'). Lone Pine Peak will be visible to the SE.
It doesn't seem necessary to add to the vast route beta available in guide books but I will say that there is no more than 1 pitch of 5th class that starts out of a large notch 2/3 up the route. The crux is a brief two or three move layback corner before the climbing eases off to 3rd-4th class. The scenery is stunning.