We basically followed Smoot's "Climbing Washington's Mountains" route. However, we worked toward the north side of the West ridge and traversed the permanent snow field to avoid the 3rd class scrambling that Smoot mentions, making this a straight forward 2nd class route.
A climb with much history. Some route finding and brush wacking lead to an airy exposed finish.
Huge cornice on top.
Had a few route-finding difficulties on the way there, but still managed to make it. Long ways to go! Camped at the tarns along the ridge; awesome spot!
It was a long day. Really liked the tarns along the way. Just a bit of route finding and veg belays. The gully taking you through to Anderson Pass is obvious. That was a question I first had. No problem.
Climbed the West route along the ridge from Mt. Persis to the summit of Mt. Index. Descended the East Route to Lake Serene which required 1 short rappel and a lot of "brush belays" to descend from the ridge to the boulder field above the Lake.