Giant Cicada Killer Wasp 1

Hi, I found this one while out this morning. It was digging out a burrow. This one is about 2" long. It would go in, dig some dirt and then push it out backwards. I watched it for about 20 minutes, as it would disappear into the burrow, and then come back out pushing the dirt away from the hole.
I'm posting 2 pics of it.