I'm posting an update with pictures this time.
I decided to leave the gravel right where it is and cover it with clay. The contractor ran the numbers past me and suggested that I pick a different place to mine for gravel.
I really ran out of money and time to do any more pond digging. I'm glad I got what I got and really glad it's all completed!!
I have to admit though, I was really curious what it would have looked like and what other material would have come out of that hole.
Here's a bunch of pictures so you can see what I was working with.
Thanks everyone for the replies and answers.
I'm gonna post some before and after pictures of my pond in a few days.
ETW
The gravel test hole was about 4 or 5 feet deep. Overnight the hole filled up with about 2 feet of water.
A side view showing the strata. Looks like I was getting into quite a bit of sand and clay right before he hit the gravel.
Some of the gravel. There were rocks ranging from fist sized to pea. Some small pieces of petrified wood too. It must have been a riverbank at one time.
Covering it up.
A few places where his blade smoothed the bottom out showed how the colors were marbled.
The gravel hole is covered now and he's spreading and packing the clay.
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