Crews remain out fighting a wildfire in Englewood Cliffs that started Thursday evening.

The New Jersey Forest Fire Service has been trying several different methods to put down the flames, which are burning brush and dry leaves along the cliffs of the Palisades.

One way is by digging into the dirt to put out hotspots buried underneath dried earth.

Several ground crews were in the area of Rockefeller Lookout, which is a stop along the Palisades Interstate Parkway.

The New Jersey Forest Fire Service is also using helicopters to drop water on the flames that are on the cliffside. They’re scooping it up from the Hudson River and dropping 350 gallons at a time.

At times, one can hear the helicopters but they can’t be seen through the smoke that is blowing across the river to New York City.

Fire officials say that 39 acres have burned. As of Sunday morning, it is 75% contained and no homes are at risk of burning. All lanes along the Palisades Parkway are open, according to officials.