Although this occurred in Canada, I'm posting it in General because I think there's a lot to learn for anyone who travels in avy terrain. I give a lot of credit to these guys for being willing to give such detailed info. I always learn so much from these.
Basics: http://avalanche.ca/Forums/forums/t/4719.aspx
Photos: http://www.leelau.net/2010/fissileevent2010_04_10/
TGR Thread with lots of information: ...