Found the treasure something big underground

Once my friends and I decided to go on a picnic.
after we ate very tasty I decided to walk with a metal detector.after an timid hour of searching, my findings were mostly corks from bottles of alcohol,I finally found something interesting.
After the metal detector made a sound I started digging the ground, I dug and the device showed that you need to dig further. And after another attempt, my shovel hit something metal. Digging a hole, I saw a metal part the size of a kitchen table,I needed friends to get it out of the ground.
We got it together and it turned out to be an old spare part from the truck.Although the discovery itself was of no value, it was still a good adventure and a great warm-up.