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MT. PLEASANT TOWNSHIP (KDKA) — Police made a significant drug seizure along the Pennsylvania Turnpike in Westmoreland County after pulling the driver over for going too slow.

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When it comes to big drug seizures and the Pennsylvania State Police, the Pennsylvania Turnpike — especially near the New Stanton interchange — has proven to be a gold mine.

“We have a hub when it comes to the New Stanton exchange and that New Stanton exchange off the Turnpike has a multitude of major arteries that come in and out,” State Trooper Stephen Limani said. “It just doesn’t stop, and it is a constant battle.”

The latest skirmish in that wider war occurred on the Turnpike near Mt. Pleasant. Troopers noticed a box truck that was going far from fast — about 40 mph in a 70 mph zone.

“There are minimum speed limits on the Turnpike,” Limani said.

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After pulling over the truck, troopers started to question the driver — 63-year-old Mark Joseph Doyle, of Oregon. The troopers didn’t know at first but would soon find out they were dealing with something more than an overly cautious driver.

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Troopers started to search the truck and it didn’t take them long to find 510 pounds of marijuana stuffed in a crate and sealed in plastic to reduce any odor.

The street value of the entire load is about $1.5 million.

Doyle was sent to the Westmoreland County Jail. He is facing significant drug charges and was denied bond.

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“It’s a great seizure, and it’s another win for what I consider the good guys,” Limani said.