Question: Damariscotta Shell Midden Historic District includes which dump of oyster shells?

Context articles: Gardiner Pond Shell Midden
Whaleback Shell Midden
Satohama shell mound
Damariscotta Shell Midden Historic District
Sakiyama Shell Mound
Ōhora Shell Mound
Nagane Shell Mound
Hamashiriya Shell Mound
Takonoura Shell Mound
Shimofunato Shell Mound

The Gardiner Pond Shell Midden (also known as RI-101W) is a prehistoric archaeological site in Middletown, Rhode Island.
 The site includes a large shell midden, in which archaeological finds have been made dating the area's human habitation to the Middle and Late Woodland Period.
 Finds at the site include agricultural tools such as hoes, planting tools, and stone mortars and pestles.
 The midden is on the grounds of the Norman Bird Sanctuary.
Whaleback Shell Midden is a shell midden, or dump, consisting primarily of oyster shells located on the east side of the Damariscotta River in Maine, United States.
 It is preserved as a Maine state historic site and was included as part of the Damariscotta Oyster Shell Heaps listed on the National Register of Historic Places in 1969.
 Other shell middens are located on the estuary in both Damariscotta and Newcastle.
 The middens in this area were formed over about 1,000 years between 200 BC to AD 1000.
Satohama Shell Midden (里浜貝塚 ) is a Jōmon period archaeological site consisting of a shell midden and the remains of an adjacent settlement located in what is now the city of Higashimatsushima, Miyagi Prefecture in the Tōhoku region of northern Japan.
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 It is protected by the central government as a National Historic Site.
The Damariscotta Shell Midden Historic District encompasses a significant collection of shell middens along the Damariscotta River in Lincoln County, Maine.
 It includes eleven middens in all, including the well-known Whaleback Shell Midden and the Glidden Midden, which is the largest shell midden in the northeastern United States.
 The area has the largest concentration of such midden sites under conservation protection in the eastern United States.
 The district was listed on the National Register of Historic Places in 1998.
Sakiyama Shell Midden (崎山貝塚 , Sakiyama Kaizuka ) is a Jōmon period archaeological site consisting of a shell midden and the remains of an adjacent settlement located in what is now the city of Miyako, Iwate Prefecture in the Tōhoku region of northern Japan.
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 It is protected by the central government as a National Historic Site.
Ōhora Shell Midden (大洞貝塚 , Ōhora kaizuka ) is a Jōmon period archaeological site consisting of a shell midden and the remains of an adjacent settlement located in what is now the city of Ōfunato, Iwate Prefecture in the Tōhoku region of northern Japan.
 It is protected by the central government as a National Historic Site.
Nagane Shell Midden (長根貝塚 , Nagane Kaizuka ) is a Jōmon period archaeological site consisting of a shell midden and the remains of an adjacent settlement located in what is now the town of Wakuya, Tōda District, Miyagi Prefecture in the Tōhoku region of northern Japan.
 It is protected by the central government as a National Historic Site.
Hamashiriya Shell Midden (浜尻屋貝塚 , Hamashiriya Kaizuka ) is a Muromachi period archaeological site consisting of a series of shell midden and the remains of an adjacent settlement located of the village of Higashidōri on the Shimokita Peninsula of Aomori Prefecture in the Tōhoku region of far northern Japan.
 It is protected by the central government as a National Historic Site.
Takonoura Shell Midden (蛸ノ浦貝塚 , Takonoura kaizuka ) is a Jōmon period archaeological site consisting of a shell midden and the remains of an adjacent settlement located in what is now the city of Ōfunato, Iwate Prefecture in the Tōhoku region of northern Japan.
 It is protected by the central government as a National Historic Site.
Shimofunato Shell Midden (下船渡貝塚 , Shimofunato kaizuka ) is a Jōmon period archaeological site consisting of a shell midden and the remains of an adjacent settlement located in what is now the city of Ōfunato, Iwate Prefecture in the Tōhoku region of northern Japan.
 It has been protected by the central government as a National Historic Site.
 since 1934.