There are several sources of gold, including:

1、Gold mines: The majority of the world's gold is mined from underground or openpit mines.
2、Recycled gold: Gold can also be obtained by recycling old jewelry, coins, and other items that contain gold.
3、Scrap gold: Gold can also be recovered from electronic devices, such as computers and cell phones, which often contain small amounts of gold.
4、Artisanal and smallscale mining: In some countries, individuals and small groups mine for gold using simple tools and methods.
5、Alluvial deposits: Gold can also be found in alluvial deposits, which are deposits of sediment and minerals that have been eroded and transported by water.

It's worth noting that the extraction of gold can have significant environmental and social impacts, so it's important to consider these factors when sourcing gold.