The Triangular Field at Gettysburg Battlefield in Pennsylvania is a small, triangular-shaped piece of land near the Wheatfield and Devil's Den where some of the heaviest fighting of July 2, 1863, took place. The field has become notorious among paranormal investigators for its unusual electromagnetic properties. Visitors regularly report that cameras, phones, and other electronic devices malfunction or lose power within the field's boundaries. Fully charged batteries drain to zero, video cameras shut off, and compass needles spin erratically.
Some visitors describe a heaviness or pressure in the air, and the field has been the site of numerous reports of apparitions — soldiers in both blue and gray uniforms seen among the fence lines. EVP recordings taken in the Triangular Field have allegedly captured voices speaking in 19th-century military language, including commands and cries for help. The field's relatively small size makes the concentration of reported phenomena particularly striking. Some investigators have speculated that the intensity of combat and death in such a confined area — combined with possible geological factors beneath the field — created conditions for an unusually powerful residual haunting.
The Triangular Field is one of the most popular stops on Gettysburg ghost tours and has been featured on multiple paranormal television programs.