Highland games "Cowal Games", held in Dunoon, Scotland, every August, is the largest Highland games in the world, attracting around 3,500 competitors and somewhere in the region of 23,000 spectators from around the globe. Worldwide, however, it is exceeded in terms of spectators by two gatherings in the United States: the estimated 30,000 that attend Grandfather Mountain in North Carolina and the even larger gathering—the largest in the Northern Hemisphere—that has taken place every year since 1866. This event is currently held on Labor Day weekend in Pleasanton, California, and their Sesquicentennial Games held on September 5–6, 2015, attracted record crowds close
Lake Cowal the National Trust of Australia. The area surrounding the lake is rich in minerals - especially gold - and is currently being mined by Evolution Mining. Barrick Gold sold the Cowal Mine to Evolution Mining in 2015 for AU$550m. There is concern among environmental groups and the local Wiradjuri Aboriginal people that the cyanide used in the mining process prior to 2007 could lead to the contamination of the lake. The area was explored for gold in the 1980s and 1990s by North Limited, a subsidiary of Rio Tinto Group. The mine has been producing gold since 2006, and produced