Here's the part nobody explains when they're trying to sell you a monthly contract:
Moles don't tunnel for fun.
They tunnel because they have to.
An eastern mole must eat nearly 100% of its body weight in food every single day. Earthworms make up 70–90% of that diet. To find enough earthworms, it has to keep moving, keep digging, keep expanding.
It's not destroying your lawn out of spite.
It's running a continuous, exhausting hunt just to survive.
And here's the part that makes the math brutal:
The typical suburban lot half an acre, a full acre supports at most two moles. Often just one. The territory of a single eastern mole covers two to three acres.
Read that again.
One mole. Three acres of territory.
Your entire yard, and your neighbor's yard, and part of the next yard over.
One animal. Driven by a metabolism that never stops. Tunneling at 18 feet per hour. Seven days a week. 365 days a year. No hibernation.
That's what you're actually dealing with.
Not a colony. A machine.