As firefighting crews battle a wildfire in a remote area of Utah, they're encountering "big" -- and venomous -- creatures, video shows.

The U.S. Forest Service Uinta-Wasatch-Cache National Forest shared a video on Friday, Sept. 13, of a menacing rattlesnake that appears poised to attack the person recording it.

The fearsome rattle of its tail rings out as it slithers within dry brush on the forest floor, the video shows.

"It's big," the person recording says in the video as they zoom in on the snake's head, its eyes fixed on them. "That's scary."

It's just one challenge the firefighters face as they battle the Rudd Creek Fire, officials said.

"Although the fire is quite visible from the valley, crews working to contain the #RuddCreekFire face challenging conditions in remote, rocky, and very steep terrain," officials said. "In addition to rolling debris and poor footing, firefighters have reported a few encounters with large rattlesnakes that inhabit the slope."

The fire started Sept. 10 and was caused by a lightning strike, KUTV reported.

The snake appears to be a Great Basin rattlesnake, which are common in Utah, the station reported.

Rudd Creek is about a 20-mile drive north from Salt Lake City.

Snake bites

Venomous snakes bite more than 7,000 people each year, according to the Centers for Disease Control and Prevention.

"About 5 of those people die," the CDC said. "More people would die if they did not seek medical care."

Rattlesnakes, copperheads, cottonmouths and coral snakes are all venomous snakes that live in the U.S.

If you see a snake, back away slowly and don't touch it. Here's what the CDC says you should do if a snake bites you: