An environmental conservation group focused on wild salmon has released a 91-page scientific report on how Southwest Alaska's Bristol Bay would be affected by the proposed Pebble gold, copper and molybdenum mine.

Wild Salmon Center, in conjunction with the Trout Unlimited organization, publicized the report this week. The groups vehemently oppose Pebble Mine.

According to the report:

• Pebble would have a 28-square-mile footprint in the Bristol Bay watershed.
• Pebble would produce up to 10.8 billion tons of waste rock.
• Extracting Pebble's ore would create a massive open pit mine, though the size and nature of the pit would depend on what type of underground mining Pebble pursues.
• The mine would require 9 miles of dams reaching 740 feet high to contain toxic waste byproducts.

The report concludes Pebble Mine presents "a serious and potentially catastrophic threat to the continued health of Bristol Bay's aquatic and terrestrial habitats and to the region's world-class salmon fisheries." Read the full report here.

In the next two years, the Pebble Partnership will wrap up its project design -- plans for a mine and the infrastructure it requires -- and submit it to the feds in its application for a wetland permit, the first of 25 to 30 environmental permits needed to mine near Bristol Bay.