Haunted and abandoned, this once cutting-edge electronics manufacturing plant in Casa Grande, AZ is a hit with urban explorers but a nuisance to local law enforcement.

I was really looking forward to exploring "The Domes of Casa Grande" but new fencing, fresh "No Trespassing Signs" and numerous drive-by's by law enforcement kept me at a distance.

I was really looking forward to exploring all of the domes during my visit but new fencing and numerous drive-by’s by local law enforcement kept me from doing so. Blogs report that the structures, known locally as the “Domes,” attract supernatural enthusiasts from around the country who believe the abandoned structures are haunted. Some theorists swear they have seen a shadowy figure and heard whispering noises, sounds of children screaming and footsteps.

Other online theories suggest some members of a coven practice rituals in the Domes by burning animal carcasses and household objects.

Other online theories suggest some members of a coven practice rituals in the Domes by burning animal carcasses and household objects. Blogs report that the structures, known locally as the “Domes,” attract supernatural enthusiasts from around the country who believe the abandoned structures are haunted. Some theorists swear they have seen a shadowy figure and heard whispering noises, sounds of children screaming and footsteps.

Once a cutting-edge electronics manufacturing plant, the abandoned group of domed structures found off Interstate 8 is the center of teenage shenanigans and rumors of the supernatural.

Built by InnerConn Technology Inc. in 1982, the factory was left unfinished on the side of Thornton Road in Casa Grande when the California-based company went bankrupt more than 30 years ago.

Built by InnerConn Technology Inc. in 1982, the factory was left unfinished on the side of Thornton Road in Casa Grande when the California-based company went bankrupt more than 30 years ago.

The Domes remain a topic of interest to people around the country. Many travel to the location to share their experience on Internet blogs and forums. The online community continues to be fascinated by the possibility of a haunting or even an alien presence in the structures. By and large, however, the Domes reportedly serve as a hub of underage drinking and teenage graffiti. Much of the debris in the structures are broken glass bottles, food wrappers and burned household objects.

The Domes remain a topic of interest to people around the country. Many travel to the location to share their experience on Internet blogs and forums. The online community continues to be fascinated by the possibility of a haunting or even an alien presence in the structures. By and large, however, the Domes reportedly serve as a hub of underage drinking and teenage graffiti. Much of the debris in the structures are broken glass bottles, food wrappers and burned household objects.

 

UPDATE MAY 2017 Pinal Central News reports:

CASA GRANDE — Pinal County says a Casa Grande-area icon must come down.

At a hearing Tuesday, Pinal County officials made a case for condemning the so-called Casa Grande Domes, a group of four concrete buildings just south of Casa Grande on Thornton Road. The domes are unsafe, the county contends, and they must be demolished.

Dan Peer, vice president of Simplicity Communications, manager of the property, said the county has ordered him to demolish all of the domes and pay a $5,000 fine. The fine is imposed because the company missed a deadline earlier this year to tear the structures down.

On or around Dec. 17, the back half of the largest dome collapsed. Since then Peer has been battling the county over what to do with not only the broken concrete but also about the remaining domes, which Peer says are still structurally sound.

The property has changed hands several times, with Simplicity taking over managing the domes in 2007. Peer said the property is on 5 acres and has utilities running to it, or easily accessible. The property is currently listed for sale for around $500,000.

The unusual buildings receive a lot of interest from people interested in the supernatural and have been featured on the Travel Channel television show “Ghost Adventures.” In October, Pinal County officials denied a permit for a medical marijuana festival, citing safety concerns at that time.