Hub of Kad'yak's ship's wheel as found in situ on the site but recovered for preservation.

Hub of Kad'yak's ship's wheel as found in situ on the site but recovered for preservation.

Remains of unidentified vessel seen below.

Large staghorn coral with bluehead hovering above.

Remains of the wreck of the Ship GUERRERO

Debris associated with the wreck of the Ship GUERRERO entangled in large coral

Debris associated with the wreck of the Ship MENEMON STANFORD

Debris associated with the wreck of the Ship MENEMON STANFORD

Debris associated with the wreck of the Ship MENEMON STANFORD

Debris associated with the wreck of the Ship MENEMON STANFORD

Debris associated with the wreck of the Ship MENEMON STANFORD

Debris associated with the wreck of the Ship MENEMON STANFORD

Debris associated with the wreck of the Ship THIORVA surrounded by lush coral growth

Debris associated with the wreck of the Ship THIORVA surrounded by lush coral growth

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the Ship THIORVA

Debris associated with the wreck of the HMS WINCHESTER

Debris associated with the wreck of the Ship CITY OF WASHINGTON

Debris associated with the wreck of the Ship CITY OF WASHINGTON

This heavily concreted carronade is one of 10 located during the 2008 expedition. It is the proverbial "smoking gun" - the clue that every archaeologist hopes to find that will positively identify a site. By measuring the inside diameter, archaeologists confirmed that these were 32-pounder carronades, the size used on the USS CHIPPEWA.

"...I was under the necessity of cutting away the Masts, the preservation of those left on the wreck had now become some what precarious..." Master George Read describing his efforts to slow the destruction of the USS CHIPPEWA by cutting away the masts. The remnants of the wooden mast deteriorated over time, but the stout mast band survives.

A photo-mosaic of the Black Rock Wreck's hull components exposed in the transverse trench excavated across the site. The keel lies beneath where the frames end at the top of the mosaic, and the deck knee lies at the bottom left. The distance between these two points, 7 meters, represents one side of the ship from the keel to the bottom of the main deck.

Ships that wreck in shallow water tend to break apart due to the force of wind, waves, and ice. Many wrecks dot the shoreline of Thunder Bay, providing great opportunities for snorkeling, kayaking, and recreational diving. Pictured here are the remains of the 1840s sidewheel steamer New Orleans, one of the oldest known wrecks in the sanctuary.

Protected from the high-energy of a shallow water environment, deepwater shipwrecks are often very intact. Such wrecks are true time capsules, providing unique archaeological, historical and recreational opportunities. Pictured here is the 300-foot long bulk freighter Norman, which sank in 1895, resting just outside the current Thunder Bay sanctuary boundaries.

Protected from the high-energy of a shallow water environment, deepwater shipwrecks are often very intact. Such wrecks are true time capsules, providing unique archaeological, historical and recreational opportunities. Pictured here is the 300-foot long bulk freighter Norman, which sank in 1895, resting just outside the current Thunder Bay sanctuary boundaries.

The Green Lantern Wreck, unknown wreck named for lantern artifact. Callogorgia is growing around the wreck.

The Green Lantern Wreck, unknown wreck named for lantern artifact. Paramuricea is located along the edge of the hull.

The Green Lantern Wreck, unknown wreck named for lantern artifact. Spiney Crabs crawled all over the wrecksite.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The bobstay fasteners are attached with modern hex nuts.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The patent windlass has rolled over the port side of the hull, possibly with the dismasting of the vessel.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The knees to the windlass are still intact but upside down.

The Green Lantern Wreck, unknown wreck named for lantern artifact. A pagoda micro-biological experiment was set on the wreck along with a short term exposure experiment.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The rudder is still intact and the attachment to the sternpost is visible.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The bell lay nestled in among the remains of two deck beams.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The starboard sidelight, for which the shipwreck is named lay outside the hole in the stern.

The Green Lantern Wreck, unknown wreck named for lantern artifact. The lantern rode to the surface in JASON's bucket chimney down.

Watching the work underwater from the big screen in the laboratory.

A huge colony of Lophelia lives on the stempost.

The snapped pintle on the sternpost appears to be of interest to more than just humans.