List of National Natural Landmarks in Alaska
The list of National Natural Landmarks in Alaska lists all geological and ecological objects in the US state of Alaska that have been declared National Natural Landmarks .
National Natural Landmarks
Surname | image | Date of award |
region | Borough / Census Area |
description | |
---|---|---|---|---|---|---|
1 | Caldera of Mount Aniakchak | 1967 | Alaska Peninsula | Lake and Peninsula | Mount Aniakchak is located in the Aniakchak National Monument and Preserve , the caldera has a diameter of almost ten kilometers and a depth of about 600 m. The Aniakchak River rises from the crater lake, Surprise Lake . | |
2 | Arrigetch peaks | 1968 | Endicott Mountains | Yukon-Koyukuk | The Arrigetch Peaks are located in the Gates of the Arctic National Park . They were a landmark for the Nunamiut . The group of granite peaks rises above glacial valleys and boreal coniferous forest . The peaks illustrate glacier activity and show an abrupt transition from metamorphic rock to granite . | |
3 | Bogoslof Island | 1967 | Aleutian Islands | Aleutians West | The island is part of the Alaska Maritime National Wildlife Refuge . It was created from several volcanic eruptions. During the last eruption in 1992, a rock dome was formed in the east of the island. Bogoslof Island is a nesting place for over 50,000 sea birds and a refuge for the endangered Steller sea lions . | |
4th | Clarence Rhode National Wildlife Range | 1968 | Yukon-Kuskokwim Delta | Bethel | The Wildlife Range is a coastal and highland biotope with thousands of lakes, meandering rivers and tidal flats within the Yukon Delta National Wildlife Refuge . | |
5 | Mount Iliamna | 1976 | Chigmit Mountains | Kenai Peninsula | Mount Iliamna is a stratovolcano in Lake Clark National Park . Most of the mountain is covered in snow and ice. At least ten glaciers lie on its flanks. | |
6th | Lake George | 1967 | Chugach Mountains | Anchorage | At the time it was designated a National Natural Landmark, Lake George was the largest lake in North America dammed by a glacier. The Knik Glacier blocked the outflow in winter and caused the water level to rise, in summer the barrier broke and the lake water poured into the Knik River in a large tidal wave . | |
7th | Malaspina glacier | 1968 | Elias Range , Gulf of Alaska | Yakutat | The Malaspina is the largest foreland glacier in North America and one of the largest on earth outside the polar caps. It was an important landmark for early explorers in the region. | |
8th | McNeil River State Game Sanctuary | 1968 | Alaska Peninsula | Kenai Peninsula | The sanctuary, surrounded by Katmai National Park, includes the McNeil River , where many low, shallow waterfalls offer brown bears good salmon fishing opportunities. The high density of bears in this area offers good viewing opportunities. | |
9 | Mount Veniaminof | 1967 | Alaska Peninsula | Lake and Peninsula | The 65 km² glacier in the volcano's caldera is the largest such ice field in the United States. It is also the only known glacier on the continent with the vent of an active volcano in the middle. | |
10 | Mount Redoubt | 1976 | Chigmit Mountains | Kenai Peninsula | The active stratovolcano is the second highest of the volcanoes on the Alaska Peninsula and the Aleutian Islands . It is located in Lake Clark National Park and is largely covered by glaciers and ice fields. | |
11 | Mount Shishaldin | 1967 | Aleutian Islands | Aleutians East | The stratovolcano is located in the Izembek National Wildlife Refuge and is the highest mountain on Unimak Island . Its symmetrical, conical shape made it a distinctive landmark in the Aleutian island chain . | |
12 | Simeonof National Wildlife Refuge | 1968 | Aleutian Islands | Aleutians East | Simeonof Island , one of the Shumagin Islands , is part of the Alaska Maritime National Wildlife Refuge . Their abundance of blue-green algae and seaweed offer sea otters an ideal space for rearing their young. | |
13 | Unga Island | 1968 | Shumagin Islands , Alaska Peninsula | Aleutians East | Petrified trees on the Unga Island coast are remnants of primeval and coastal sequoias that were buried by volcanic ash in the Tertiary . They are of scientific importance because of their informative value regarding the migrations over the Beringia land bridge between Asia and North America and the climate in the Aleutian arc before human settlement in Alaska. | |
14th | Walker Lake | 1968 | Gates of the Arctic National Park | Northwest Arctic | Walker Lake is an example of the interplay of geological and biological influences in a glacier-fed lake at the transition from the boreal zone to the tundra . | |
15th | Walrus Islands | 1968 | Bristol Bay | Dillingham | The archipelago is the southernmost and, with up to 4,000 animals, the last major rearing area for walruses in the United States . The landmark consists of seven islands that together form the Walrus Islands State Game Sanctuary . | |
16 | Worthington Glacier | 1968 | Chugach Mountains | Valdez-Cordova | As a typical representative of glaciers that have formed in narrow valleys, the Worthington Glacier shows many characteristic features such as deposition areas and terminal moraines . Part of the Worthington Glacier State Recreation Site , it is one of the most easily accessible glaciers in Alaska. |
Web links
Commons : National Natural Landmarks in Alaska - Collection of Images, Videos, and Audio Files