I notice you too are always on trail alert applicable status. Could definitely work for the task of emergency garbage bag shelter. Seems large enough to stuff with dry vegetation like leaves that can absorb body moisture and add a bit of insulation that you crawl into. Could be a short term very light duty dirt bag tarp if cut length wise or possibly one or two ground cloth sheets(hmm?). $2 rain poncho anyone? $2 @ 4 oz heck worth a shot. If it doesn’t work you’ll have the largest white plastic garbage bag at the curb on your block.