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The Alaska Peninsula & The Aleutian Islands
The Alaska Peninsula extends over 500 miles into the Pacific Ocean. Its rugged shorelines, steep mountains, and clear, cold waters offer some of the remotest reaches of wilderness on the planet.
South Central Alaska
The city of Anchorage, with Mount Susitna ("Sleeping Lady") in the background. Anchorage has half the population of the state and is the most popular base camp for visitors looking for wilderness adventure in Alaska.
The Eastern Arctic includes the entire eastern portion of the Brooks Range, extending from the mighty Yukon River, nor to the Beaufort Sea, bounded on the east by the Canadian border and on the west by the Dalton Highway (the "Haul Road" to Prudhoe Bay).
The beautiful Nenana River, north and west of Denali National Park, is a destination for river rafters, fishermen and hunters. It is but one of many jewels waiting to be discovered in the Interior.
The Kodiak-Afognak Archipelago
The Kodiak-Afognak island group, including Raspberry Island, looms between Shelikof Strait and the Gulf of Alaska like a green, forbidden land. Recreational opportunities abound for outdoors enthusiasts of all interest types.
Extending north from Ketchikan to Skagway, the Alaska Panhandle encompasses the beautiful, sheltered Inside Passage, along with islands too numerous to mention, with exotic-sounding names like Prince of Wales, Kuiu, Admiralty, Baranof, and Chicagof. These islands, and hundreds more, together with miles of hidden passages, bays and coves, invite exploration in a way unlike any place else in the world.
The Kenai Peninsula
Lower Russian Lake, on the Kenai Peninsula, is a tributary to the Kenai River system, home of some of Alaska's most popular and prolific salmon runs.
The Western Arctic includes the entire western portion of the Brooks Range, extending north from the Noatak River to the Arctic Ocean. Its eastern border is the Dalton Highway (the "Haul Road" to Prudhoe Bay), and the region's western border is the Chukchi Sea.
The Yukon-Kuskokwim Delta
The Y-K Delta is laced with rivers, lakes and ponds and is home to several species of big-game, a great variety of waterfowl, and many species of freshwater and anadromous fish.
In May 2020 a group of scientists issued a report warning of a landslide-generated tsunami in Barry Arm of Prince William Sound. They warned that Barry Glacier has receded to the point that it is no longer supporting the slope west of the glacier. Signs of substantial slippage are evident in recent aerial photos of the area, including Google Earth.
Prince William Sound is no stranger to landslide-generated tsunamis. The largest on record occurred in 1958, when 40 million cubic yards of material cascaded downslope into Southeast Alaska’s Lituya Bay, generating a tsunami that ran 1,728 feet up the surrounding mountainsides and completely inundated both peninsulas at the mouth of Lituya Bay before making its way out into Prince William Sound. The volume of the material at risk in Barry Arm is substantially greater than Lituya, at an estimated volume of 650 million cubic yards.
The dimensions of the potential slide are approximately 1.7 miles long by 1 mile wide. According to estimates, the slide area comprises 650 million cubic yards of material. This is over 1500% more material than was released in Lituya Bay in 1958. The Lituya bay slide resulted in a tsunami runup of 1,720 feet. The Lituya Bay material’s center of mass was at an elevation of 2,000 feet, and the Barry Arm material is centered at 1300 feet elevation. On the other hand, the landmass in Barry Arm appears to be substantially steeper than the slope in Lituya Bay. So while the Lituya slide traveled farther by 500 feet, the volume and slope in Barry Arm are much greater. This gives way to concerns that the Barry Arm material could generate a tsunami that is substantially larger than the Lituya tsunami, the largest on record.
However it plays out, there is ample concern that the Barry Arm slide poses an extreme danger to boaters and to any other human activity in that portion of Prince William Sound. Whittier is 37 miles from Barry Glacier, putting it well within areas of concern if a tsunami is generated. The movement pattern of a tsunami is difficult to predict beyond the immediate area, however, it is clear that Harriman Fjord would certainly be flooded, as would Barry Arm out into Prince William Sound. A subsurface glacial moraine lies across the entrance of Barry Arm, which would substantially reduce the energy generated by a tsunami, but at this point it is a guessing game as to what other areas would be impacted. Esther Passage, Granite Bay, and the north side of Culross Island are certainly at risk, but there is no way to tell how much wrap-around there will be into side bays and fjords. Tsunamis typically maintain most of their energy until they run into shallow water. Deep, narrow passages stand the greatest risk of surges that can sweep hundreds of feet up-slope.
It's impossible to say when the slide in Barry Arm will let go. Estimates are that it could slip at any time, without warning.
There is little a boater can do if they are on the water as a tsunami is generated. Boaters are advised to monitor emergency channels to be apprised of any issues that may occur. This is important even if you are a substantial distance away, as tsunami waves travel great distances while retaining their power. The safest place on the water in a tsunami is in deep water. Shallow areas and coastlines are hit the hardest as the wave feels the bottom and is forced up. Some boaters may want to avoid Barry Arm and Harriman Fjord altogether as a precaution.
The above photo shows the size of the area at risk. It encompasses an area approximately one mile by 1.7 miles, and about 650 million cubic yards of material.
The above photo shows the area of immediate concern for a large tsunami. There is a submerged glacial moraine extending most of the way across the outflow of Barry Arm into Port Wells, and this will absorb some of the impacts of the tsunami. But there is no way to know how extensive the tsunami could be.
This image shows the area of concern, in the context of other areas of concern in Prince William Sound.
The scientific report on this situation can be found AT THIS LINK.
If you plan to fish anywhere on the Kenai Peninsula, you need a copy of Dave Atcheson's "Fishing the Kenai Peninsula" in your rig. If you're new to the area, a copy of The Milepost will help you plan your trip, providing maps and detailed information on the locations of campgrounds, cabins, places to eat, fuel stops and much more. While you're in the bookstore, you might also check out our maps of Kachemak Bay State Park, Kenai River (includes only the middle and lower sections of the river, from Skilak Lake to the mouth), and the Northwestern Kenai Peninsula map, which includes only the areas around Kenai, Soldotna, Sterling, Kasilof, and Nikiski. These are road maps, but they also show campgrounds, fishing areas and available species. Finally, check out Scott Haugen's excellent book, "Bank Fishing for Steelhead and Salmon" for excellent tips that will work on the Kenai River, Deep Creek and other places on the Kenai Peninsula.
Click on the following links to review angling opportunities in the various areas of the Kenai Peninsula.
Whittier Saltwater Fishing | Kenai Peninsula Fishing Intro | Upper Kenai Peninsula Fishing | Central Kenai Peninsula Fishing | Lower Kenai Peninsula Fishing | Kenai Peninsula Marine Fishery | Kenai Peninsula Clamming | Seward Saltwater Fishing | Seldovia Fishing
Pages that describe freshwater fishing and saltwater fishing and shellfishing opportunities on Alaska's Kenai Peninsula.