Maybe I should have given it a couple of days of sun before sallying forth with a skid steer to clear the stuff around the Garden shed before the Move. The more I struggled the deeper I got. Even pushing the forks into the ground and using it to try and jack me out failed. Must be a lesson there. It was so stuck I was in danger of not being able to get out of the the beast.
Fortunately, a call to Brother Tom and the excavator pulled the Skid steer out without a hitch. The problem was the trench we had dug to get power to the greenhouse was soaked with snow melt. Just a giant mud pudding.