I had decided to move the gate to the pasture closer to the barn as it is a fair distance away in it's present location, and hence is a pain during winter. So luckily there was only the one hole to dig. Though we are hoping to put up a dry lot before winter in which case we will be digging a lot more of these holes.
It went fairly smoothly until I reached two feet. I don't know why but it seems whenever I dig holes I hit something---needless of the fact I am a gazillion miles from the house and even further from the road in the middle of no-man's land, so what should be out there I have no idea! But I do and I did. Thankfully I didn't puncture anything though. It was some kind of ribbed rubber tubing thingamabob which was obviously protecting something. So I left the digging there and dropped my pole into the hole.