As a long time reader of the Buzz I finally registered a while back and decided to chime in on this one as my first-ever post. I am including a few pictures of my homemade fire pan. It is a nested 2-piece pan that fits inside of a rocket box with room for ashes (2 3# coffee cans), grills, collapsable shovel, scraper, gloves and a couple of 4# bags of charcoal. I friend of mine built this for me long ago and it is still going strong after many river trips and southern Utah camping trips. It exceeds the Grand Canyon size requirements and has been approved by the ranger on 2 Grand trips. With the new elevated fire pan requirements I will have to fabricate some legs to replace my 6-rock method but this is project for later. One nice thing about this setup is that most raft and cataraft frames are configured for rocket boxes so you might even be able to pawn this off to a friend's boat. Plus it keeps the grime contained so you don't have to worry about where to strap down a messy pan. I included a schematic with dimensions in case any of you find this design worthy.