Tailings area by Richmond portal. This area has been cleaned up and the tailings removed.

Minnesota flats where the ore was crushed, note Redding California in the background.

A containment facility or tailings impoundment area. The upper portion of the image shows where the tailings are dumped.

Brick Flat Pit. This pit was excavated to extract ore and was then used to dispose of sludge, an early and inefficient disposal method.

A copper plant. One of the early treatment methods. A concrete trough was was filled with metal and then as the mine drainage flowed over it the mine drainage precipitated onto the metal.

Manton Keswick's Reservoir near Redding, California. Ore loading facility, Iron Mountain. The grey area by the concrete wall is spilled ore. Ore from Iron Mountain Mine was ground up at Minnesota Flats mill and carried over the mountains to wading facility.

The road leading to Iron Mountain Mine.

Remedial activities.

Mucking out the tunnel at Iron Mountain Mine

An image of sludge. The sludge is composed of copper, zinc and iron bound in a carbonate mixture.

A group wears protective clothing as they enter one of the portals at Iron Mountain Mine.

Inside a portal that was cleaned early in the process.

The second in a series of images that shows inside of a portal that was cleaned early in the process.

The third in a series of images that shows inside of a portal that was cleaned early in the process.

Treatment plant at Minnesota Flats to treat AMD from the Richmond and Lawson Portals. Water raised PH 1 - 11 to ppt sludge. The sludge was hauled to Brick Flat pit.

Part of the collection system for acid mine drainage.

Treatment plant at Minnesota Flats to treat AMD from the Richmond and Lawson Portals. Water raised PH 1 - 11 to ppt sludge. The sludge was hauled to Brick Flat pit.

AMD coming from Iron Mountain Mine, Lawson Portal.

Containment of sludge coming from Iron Mountain Mine, Lawson Portal.

Acid mine drainage coming from the top of Iron Mountain Mine.

Metal sludge from Spring Creek into Keswick Reservoir.

Cap in the Iron Mountain Mine, Brick Flat pit.

Acid mine drainage, the orange color is from iron precipitate. Blue indicates copper, the green is algae.

Metal precipitates taken inside the mine.

Spring Creek discharge.

Trucks (perhaps sludge carriers) on Iron Mountain Mine.

Flume of PH 1 water from portals no longer in use, Richmond and Lawson, at Iron Mountain Mine.

An ore vein in Iron Mountain Mine, the ore vein in the grey area is a sulfide ore.

Flat Creek at Keswick Reservoir near Redding, CA. The creek needs additional physical restoration except for copper from Stowell Mine the creek is chemically clean.

Grey spilled ore at Manton on Keswick Reservoir near Redding, CA.

Upper Spring Creek above the influence of Iron Mountain Mine; note the normal riparian vegetation.

Spring Creek , looking into the sun, from Keswick Reservoir near Redding, CA.

Flat Creek at Keswick reservoir near Redding CA near normal riparian habitat.

Spring Creek just above Boulder Creek input. The riparian vegetation is normal.

Spring Creek and Boulder Creek meet, note the change in riparian vegetation.

Spring Creek, downstream of the Debris Dam.

Spring Creek Debris Dam Reservoir.

Rectenwald, Dean Heckathorn, Nick Iadanza at the Spring Creek arm of Keswick Reservoir. The yellowish area under the water is sludge.

Looking up Spring Creek just above Boulder Creek input. Note the change in the riparian vegetation.

Spring Creek Reservoir and the Spring Creek arm of Keswick Dam.

Minnesota Flats; note the Spring Creek arm of Keswick Reservoir in the background.

This is where Spring Creek enters Keswick Reservoir

Spring Creek below Iron Mountain Mine

Spring Creek just above Boulder Creek input. The riparian vegetation is normal.

Upper Spring Creek below Stowell but above the influence of Iron Mountain Mine. Note the normal vegetation in the riparian zone.

60,000 cubed yards of sludge (yellowish area) at 1% cu in the Spring Creek arm of Keswick Reservoir.

Manzanita bush at the base of Iron Mountain Mine along the Spring Creek arm of Keswick Reservoir near Redding, CA.

Looking downstream from the debris dam at Iron Mountain Mine.

View upstream from Spring Creek Debris Dam.

Debris Dam Reservoir, Spring Creek.