Later: Matanuska River, Susitna River, Tok River, and Copper River depending on period.[1]
Surface area
8,900–24,000 km2 (3,400–9,300 sq mi)[2]
Water volume
2,300–6,000 km3 (550–1,440 cu mi)[3]
Surface elevation
975 m (3,199 ft) (maximum)[2]
Lake Atna (/ˈɑːtnə/; also known as Lake Ahtna) was a prehistoric proglacial lake that initially formed approximately 58 ka (thousand years ago) in the Copper River Basin, an area roughly centered around 245 km (152 mi) northeast of modern-day Anchorage, Alaska. The lake formed, and dispersed, during the Wisconsin glaciation. The lake existed in several forms, with several prominent shorelines observable in modern geology. At its greatest extent, the lake surface area was approximately half the size of modern-day Lake Ontario, and possibly much larger. The basin of the lake lay within an area bordered by the Alaska Range to the north, the Wrangell Mountains to the east, the Chugach Mountains to the south, and the Talkeetna Mountains to the west.
Lake Atna may have generated several of the largest ever glacial lake outburst floods. Old deposits from one of these floods may have added to the destruction caused by the 1964 Alaska earthquake.
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LakeAtna (/ˈɑːtnə/; also known as Lake Ahtna) was a prehistoric proglacial lake that initially formed approximately 58 ka (thousand years ago) in the...
ancient LakeAtna in the Copper River Basin may have generated a number of glacial outburst floods. Some jökulhlaups release annually. Lake George near...
a remnant of ancient LakeAtna. The Russian Shturman Serebrenikov appears to have been the first "white man" to reach this lake; according to his notes...
200 YBP Lake Antevs Lake Nakina in Ontario, east of Lake Nipigon Pacific Ocean: LakeAtna drained from present-day Copper River Basin Glacial Lake Bretz...
Type of glacial outburst flood LakeAtna – Prehistoric lake in Alaska, formerly of Alaska Lake Corcoran – Former lake in the state of California, United...
Telkwa River Toboggan Creek Morice River Thautil River Morice Lake, Atna Bay Nanika River Atna River Kispiox River Sweetin River Nangeese River East Kispiox...
Glacial Lake Albany was a prehistoric North American proglacial lake that formed during the end of the Wisconsinan glaciation. It existed between 15,000...
Atna River Provincial Park is a park located in Skeena District, British Columbia, Canada. It is named for the Atna River, which flows through the park...
The Ahtna (also Ahtena, Atna, Ahtna-kohtaene, or Copper River) are an Alaska Native Athabaskan people of the Athabaskan-speaking ethnolinguistic group...
geographic subgroups. Northern Athabaskan Southern Alaskan Ahtna (also known as Atna, Ahtena, Copper River) Central Copper River Ahtna Lower Copper River Ahtna...
Atna Peaks is an eroded stratovolcano or shield volcano in the Wrangell Mountains of eastern Alaska. It is located in Wrangell–Saint Elias National Park...
1959, 1961 Geburt eines Vulkans – afrikanisches Abenteuer, Lux 1962 Der Ätna und seine Nachbarn – Stromboli, Vulcano, Lipari, Lux 1960 Histoires de volcans...
Takla Range, bounded by Takla Lake and Northwest Arm. Boling Peak Base Peak Spike Peak Sacred Headwaters Mosque River "Atna Range". BC Geographical Names...
Nitinat Lake is a large lake and inlet on the southwestern coast of Vancouver Island, British Columbia, Canada. The lake is about 150 km (93 mi) northwest...
Atchelitz: "bay" or "inlet" in Halqemeylem, Atlin: "big lake" in Inland Tlingit Atna Range: "strangers" or "other people" in Carrier. Atnarko River: "river of...
hectares (19,700 acres). It covers Yakoun Lake and its watershed. Yaaguun Suu is the Haida name for Yakoun Lake. "Yaaguun Suu Conservancy". BC Geographical...
snowshoes. Kibbee Lake Indianpoint Lake Isaac Lake Lanezi Lake Sandy Lake Spectacle Lake Babcock Lake Swan Lake Bowron Lake Unna Lake Cariboo River Bowron...
Swan Lake Kispiox River Provincial Park is a provincial park in northwest British Columbia, Canada. It lies within the territories of the Gitanyow and...
Ahtna or Ahtena (/ˈɑːtnə/, from At Na "Copper River") is the Na-Dené language of the Ahtna ethnic group of the Copper River area of Alaska. The language...
McLeod Lake is an unincorporated community located on Highway 97 in northern British Columbia, Canada, 140 km (87 mi) north of Prince George. It is notable...
Mud Lake Delta Provincial Park is a provincial park in British Columbia, Canada, located in the North Thompson Country due east of Blue River, 230 km from...
Lakelse Lake Provincial Park is a provincial park in British Columbia, Canada, located just west of Highway 37 between Terrace and Kitimat. The name is...