A huge two mile-long crack has been discovered in the desert in Arizona.

Drone footage uploaded to YouTube by the Arizona Geological Survey shows the massive fissure splitting the desert's surface in the Tator Hills area of southern Pinal County.

The film shows people dwarfed by the crack as they stand next to the edge, while the drone flies over the wide-open fissure which extends farther into the earth then the eye can see.

A huge two mile-long crack has been discovered in the desert in Arizona

It is the first time that the AZGS has used drone footage to examine fissures in this way.

'AZGS is experimenting with drone technology as a tool for mapping fissures and other surface features, e.g. landslide masses,' a spokesman said.

The crack formed between March 2013 and December 2014, and it is believed the fissure may have grown after heavy rains in the fall of 2014.

The fissure splits the desert's surface in the Tator Hills area of southern Pinal County

Experts said fissures are fairly commonly found in the desert in Arizona

Joe Cook of the Arizona Geological Survey told 12News that the crack's southern mile is fresher, and it is thought it could have been an underground void that reached the surface after a monsoon in 2016.

The AZGS says the fissures, which are fairly common in the Arizona desert, formed after 'extensive groundwater withdraw in the Sonoran Desert.

The crack formed between March 2013 and December 2014 and grew due to heavy rains

The fissures pose a risk to live stock and people driving in off-road vehicles

It is the first time drones have been used to examine desert fissures

A cluster of the cracks exists around Eloy, and in Cochise, La Paz, Maricopa, Pima and Pinal Counties, with the first having opened up near Eloy in 1929.

The fissures are hazardous to people off-roading and riding ATVs in the area, and also pose a risk to roaming livestock who can fall in and get stuck.

It is also dangerous to stand near the edge of a fissure due to the possibility that it could suddenly cave in.