(2) In order to protect indigenous anadromous salmonids and habitat essential to the recovery and conservation of Pacific lamprey, motorized in-stream placer mining may not be permitted to occur up to the line of ordinary high water in any river in this state containing essential indigenous anadromous salmonid habitat, from the lowest extent of essential indigenous anadromous salmonid habitat to the highest extent of essential indigenous anadromous salmonid habitat.
(3) The prohibition in subsection (2) of this section does not apply to the use of nonmotorized mining technology, including but not limited to gravity dredges and syphon dredges. [2017 c.300 §4]