Mount Gravatt East is a suburb of Brisbane, Australia, located 8 kilometres (5 mi) southeast of the central business district. Named after Mount Gravatt, a nearby landmark, the suburb was first gazetted in 1967. There is a variety of hills, one of them being Mount Thompson. On land owned by Boral along Pine Mountain Road, an old quarry has filled with water. Despite being fenced off, trespassers have gained access and used the dam as a swimming hole. A Brisbane City Council report found the water had a pH level of about 3.3 and contained traces of metals making it unsuitable for human contact.