VIDEO: Footage from above showed smoke billowing in the air over a farm in Honey Brook Township, Chester County.
It happened in the 1100 block of Chestnut Tree Road, outside of Morgantown.
Firefighters rushed to the farm around 8:30 a.m. on Tuesday.
"An incident of this size, there was probably about a dozen companies involved from throughout the county and Lancaster County," said Honey Brook Fire Company Deputy Chief Gary Ream.
The smoke could be seen from miles away.
"I looked out my window, and there's a ball of flames outside," said neighbor Phillip Bell.
"It was just a big wakeup call that early in the morning to see that," he said.
Honey Brook Twp. barn fire
He said water had to be pumped from a pond across the street. Firefighters spent hours on the scene and had an excavator there.