PROVISIONAL SITE SHEOL was a classified research facility, located somewhere in rural New Mexico, USA. As opposed to its sister site, GEHENNA, SHEOL focused almost exclusively on researching the extra dimensional entities known as the Tradesmen. To this end, repeated experiments attempting to create a sustained "Bridging Event" were conducted. It was during one such experiment an unidentified manipulator lost control of his own powers, and annihilated the facility in a mass Bridging Event which consumed all matter within a radius of .8 miles.
Today, what remains of PROVISIONAL SITE SHEOL is still quarantined, and off limits to the general public, despite the fact that nothing is actually there.