Lynn, here's a couple more:
Echo Lake / Matthes Crest - Yose, Early April 2010
Copper Creek - SEKI, Late May 2009
The second one shows just how much snow lingers...
2009 was not a huge snow year...
In actuality the Nance set above was late May of this year.
Huge snow year. Only one of the 4 I put here that is
really winter is Starr King.

Chicky is not a blue bird. smile

Re. other options for shelter... the wife is prob. gonna
try winter hammocking over Xmass when we go into the
backcountry for 4 days. If anyone is interested I can post
the results... (I'll be bringing a single-wall 2 person
so she can bail into that if need be)

Since I'm babbling... if I was doing a REALLY long trip I
would def. wait until late March. By then the weather isn't
as unsettled and the days are much longer...

Have fun