An Act prohibiting certain mining activities within the watershed of the Bristol Bay Fisheries Reserve.

HB 233 prohibits metallic sulfide mining (such as mining for gold, copper, or other metals from sulfide-bearing rock) within the Bristol Bay Fisheries Reserve watershed. The bill directly affects mining operations in this area, aiming to protect the region's salmon fisheries and water systems. Key provisions ban these specific mining activities to prevent pollution of rivers, groundwater, and aquatic habitats connected to Bristol Bay. This aligns with legislative findings that the watershed supports a $2.2 billion annual fishery economy, 15,000 jobs, and cultural practices of Alaska Native communities. The bill does not address other mining types or activities outside the designated watershed.