Treasure Hunt Sri Lanka丨RIver mining

彩宝买手门牙
16 次觀看·2024年1月6日

River mining is the oldest form of mining in Sri Lanka and has been in existence for thousands of years.
Kalu Ganga is the second largest river in Sri Lanka.
There are numerous gem deposits on both sides of the river and thousands of mines are scattered along the Kalu Ganga which produce one-third of Lanka's gem production.