>>1963829if you hand mine the smart way, you wont disturb the river or stream banks at all. You mine one section, placing your rocks in hand piles. These build up the longer you have worked in a spot, and as you work your way down stream the rocks create an armor that slows down bank erosion.
A group of guys digging a hole by hand in their free time is a lot different than someone denuding a river valley with a giant or ground sluicing.
https://www.youtube.com/watch?v=zEyt1LjzUpokeep looking bud go get some big nuggets to show us!