Last year in ID one of the guys I was riding with got stuck just as he was cresting the ridge we were on. I was on top already so I went over to give him a hand - he just needed a ski pull get up on top. Just as I got there about a 10x10ft area collapsed under us with a big 'whumph' sound. Not the most comfortable feeling!
Keep the pictures coming! The grass started to green up here the other day - what a pathetic winter!!!