After I've gathered as much material as possible using the above tools, I'll be breaking out the Ol' Milwaukee wet/dry vac. It's powered by a Lithium Ion battery. I have two 5 amp hour batteries and a rapid charger. I believe two batteries will suffice for a day on the claims since this will be used just to vacuum the bedrock clean enough to eat off of.
The hose is 6' long when pulled to the full extent.
The hose and crevice nozzle store neatly inside the unit.
The collection tub holds two gallons of wet or dry material. The large HEPA filter is removable. for wet use. The entire unit with battery weighs in at only 10 pounds and measures 18" long x 8" wide x 12" tall.