This proposed megadump for Los Angeles' waste is still in the works. Under the proposal, trash would come by train to this remote desert site and a pile as high as a 30-story building and over three miles long would form over the coming years. Rock from the nearby Mesquite Gold Mine would be used as overburden for the dump. One of three desert sites considered for a megafill landfill site for Los Angeles (the others are the Eagle Mountain Mine, and Bristol Dry Lake, near Amboy), this is the only one being developed. As of 2014, the Mesquite Regional Landfill has lain idle due to changing economic conditions making it more cost efficient for Los Angeles County to ship its trash to two different landfills in Orange County, despite having invested $430 million developing the system.