A two-mile long crack has been discovered along the Arizona desert, according to drone footage by the Arizona Geological Survey. Fissures are a common occurrence in the deserts, with the first crack surfacing in 1929.

The Arizona Geological Survey uploaded drone footage on YouTube, showing a massive two-mile long fissure on the Arizona Desert surface. The fissure was found in the Tator Hills area of southern Pinal County, just 13 miles south of Arizona City, near Sunland Gin Road.

The Fissure

According to the Arizona Geological Survey’s YouTube post: “AZGS is experimenting with drone technology as a tool for mapping fissures and other surface features, e.g. landslide masses.” This marks the first time a drone was used to examine fissures.

The video shows people astonished by the massive crack as they stand on its edge. The crack reportedly extends deeper than the eye can see.

According to 12News, the fissure formed between March 2013 and December 2014, and may have been growing due to heavy rains in the fall of 2014. The heavy rains supposedly caused “extensive groundwater withdraw” in the Sonoran Desert.

Joe Cook from Arizona Geological Survey reported to 12News that the southern part of the fissure is newer, and may have “reached the surface” during the 2016 monsoon.

Are Cracks Common in the Desert?

Fissures are reportedly a common occurrence in the Arizona desert. A bunch of other cracks exist in the region, including ones around Eloy, Chcise, La Paz, Maricopa, Pima and Pinal Counties. The first crack surfaced in 1929 in Eloy.

These fissures are a safety hazard to people “off-roading” in the area. It also poses a risk to possible livestock in the region. It is also a safety hazard to stand near a fissure, since it’s possible it could cave in.