Sounds like a job for an ice chopper!

http://www.canadiantire.ca/en/pdp/yardworks-ice-chopper-
0596943p.html#.U9h00aMqfao">http://www.canadiantire.ca/en/pdp/yardworks-ice-
chopper-0596943p.html#.U9h00aMqfao

Don, enjoying the heat


On 7/29/2014 8:14 PM, Cliff Rohrabacher, Esq wrote:
> I've used an assortment of tools successfully on more than a few very 
> large trees I've taken down. I use  hand axes, a long handled steel 
> bar with a flat 3" wide chisel tip and a wrecking bar. Never actually 
> had a tool designed for the job.  Once  I get anything under the bark 
> it comes off in great sheets quite easily.