On Monday, April 1, 2013 12:00:14 PM UTC-4, Steve B wrote:
I wanted to take some coarse salt and sprinkle on it, and help it go away so
that we can get all the way to the cabin. Right now, there is a chance of a
vehicle high centering on it. Will the salt particles melt through that
much snow, and clear that?

It will take a f*ck-ton of salt, and cost a fortune, for a one-time thing. A "sprinkle" of salt will melt a thin layer of ice, not 18" of packed snow.

Same with the heat. Your piddly little weed burner won't make a dent. It will take days and days, and several tanks of propane. By then nature will probably do most of the work.

Fastest and cheapest way to get rid of it is to break it up with picks and axes, and shovel it out of the way.