Stone Ponds Traverse= Lower Lena>Upper Lena>Mt. Stone>Lake of the Angels>Putvin trail or reverse of that... my little bro and I did it a couple of years ago, entering via the Putvin trail and exiting via Lower Lena. Its pretty fun. There are faint trails along parts you can follow, but it is easy to lose them...which we did. We did it in one long day, climbing Mt. Stone. We found someone willing to gives a ride back up to our car at the Putvin trailhead.