It might have been that wide at the top, granted I have never seen a pic of it looking that wide but it was no where's' near that at the bottom. I have never seen a pic of it looking any different then what I posted above. I've seen variations of it looking like that, kinda like your pic. See how sloped it is. No more then a Pinto Wagon wide at the bottom of that.. Heck that dredge bucket lets say for arguments sake is 10' wide and 10' tall. Granted we can't see how wide the top really is but what is in view might be 70'-80' wide view at the top ( don't see how it could be 250' at the top. I have always heard he dug a 100' wide hole and again that is at the top nothing close to that at the bottom ) and maybe 40' deep and of course not sure how deep it really is at that moment but with the slope of what we see, if it is much deeper it is only "bucket" wide at the bottom..