The Beiya gold polymetallic ore district covers an area of 22.06 km2 and is located 47.5 km away in the direction 172°from Heqing county seat of northwestern Yunnan.Its geographical coordinates are 100°11′15″–100°13′00″E and6°07′30″–26°10′30″N.Since its discovery in 1999 until November 31st 2013,it has had accumulative proven(111b+122b+331+332+333)gold metal amounts of 258.475t at an average grade of 2.61 g/t.This deposit contains 88.98million tons of paragenetic and associated iron ores,with TFe grade varying from 9%to 36%;metal amounts are:gold The Beiya gold polymetallic ore district covers an area of ​​22.06 km2 and is located 47.5 km away in the direction 172 ° from Heqing county seat of northwestern Yunnan.Its geographical coordinates are 100 ° 11’15 “-100 ° 13’00” E and6 ° 07’30 “-26 ° 10’30” N. Since its discovery in 1999 until November 31st 2013, it has accumulated accumulative proven (111b + 122b + 331 + 332 + 333) gold metal amounts of 258.475t at an average grade of 2.61 g / t. This deposit contains 88.98million tons of paragenetic and associated iron ores, with TFe grade varying from 9% to 36%; metal amounts are: gold