There's a long Alaska dredging story being posted on Jim Foley's Alaska forum.
http://bb.bbboy.net/alaskagoldforum-vie ... postnum=30
I'm not sure what you have to do to get to the start because there is about 30 posts with pictures. My setup puts the most recent on top but yours may not.
If the link doesn't work for you let me know. It looks like you may have to scroll to the bottom for the beginning post.
Leonard