I'm still looking, slim. I haven't found any pictures of anything bigger than 25 Mega-Ton (2500 KTon) yet. But, I am still looking and will post when and if I find one. Whatever the picture looks like, It must be absolutely AWESOME!
The 25 Megaton explosion is truly frightful. Can you imagine a 61 Megaton? YIKES!!!!
Check the freerepublic archives for those photos. I remember a great article about nuclear testing was posted earlier this year. How about reposting that article along with it.