Carving A Fossil In Stone: 100 Watt JPT

I stole this stone from the Bojangles drive through and engraved a fossil in to it.
I wounder who will find it.

10 passes

Hammer
80% Power
68khz Frequency
2000 mm/sec

Shovel
70% Power
68khz Frequency
2000 mm.sec

Sweep
40% Power
68khz Frequency
3000 mm/sec