Finally, I discovered what causes the anomalies in the area! The huge funnel sink as locals call it, is in fact an alien landing spot. Government agents have collected the remains of the ship in crates, but they never took them anywhere. You have to be there first and get the crates to me.
Truck with Crane is recommended
The crates hold nothing but junk. Looks like one of the locals has illegally dumped trash there. Although, I'm sure the government has played a role in it. Well, we've done a good deed anyway, here's your reward.