A large fissure was discovered about 13 miles south of Arizona City on Arizona Trust land, officials said.

State Reps. Vince Leach and Mark Finchem alerted their constituents to a 1.8-mile-long fissure in the earth discovered recently by the Arizona Geological Survey.

The fresh fissure is up to 10 feet wide and up to 30 feet deep.

“Extreme caution should be exercised by anyone recreating south-southwest of Picacho Peak State Park, especially those operating off-road vehicles,” said Leach.

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The fissure is believed to have formed between March 2013 and December 2014. It is more than half a mile longer than other fissures in the area.

Fissures are fairly common in central Arizona. There are clusters of fissures around Eloy and in Cochise, La Paz, Maricopa, Pima and Pinal Counties.

Click here for drone footage shot by the AGS of the fissure.