This state stretches across three compass directions—which?

The Three-Corner Triumph

Alaska's triple claim begins with its northernmost status, the easiest to grasp. Point Barrow, at 71.4° north latitude, sits farther toward the pole than any other piece of American soil. The town of Utqiaġvik (formerly Barrow) experiences polar night for 65 days each winter and midnight sun for 82 days each summer, a rhythm no other U.S. community can match. But the state's westernmost title relies on a different sort of geography: the Aleutian archipelago, a 1,200-mile volcanic chain that arcs toward Asia. Attu Island, the westernmost inhabited point, lies 172.5° east longitude — far enough west that its residents, in the decades when a Coast Guard station operated there, celebrated the new year a full day before anyone in the Lower 48. The island's longitude alone would secure Alaska's westernmost rank, but the chain doesn't stop there.

The Aleutians continue island-hopping across the Bering Sea until they brush the 180th meridian, the line cartographers use to divide the Eastern and Western Hemispheres. Semisopochnoi Island and a handful of smaller specks of land cross that line, placing them technically in the Eastern Hemisphere. Longitude east of the Prime Meridian runs from 0° to 180°, while longitude west runs the same span in the opposite direction; once you pass 180°, the directions flip. This means Alaska occupies both 179° west and 179° east simultaneously, wrapping around the globe's seam. No other U.S. state comes close to this trick — Hawaii's westernmost point, Ka Lae on the Big Island, sits at 156° west, still comfortably in the Western Hemisphere. Maine holds the easternmost title among the Lower 48 at 66.9° west, but Alaska's Aleutian outliers beat it by crossing the meridian entirely.

How the Aleutians Ended Up American

The Aleutian Islands weren't always American. Russia claimed them in the 18th century as part of its eastward expansion across Siberia, hunting sea otters for pelts that fetched premium prices in China. Aleut communities, who had lived on the islands for millennia, were conscripted into the fur trade, often brutally. By the 1860s, the sea otter population had collapsed, and Russia's North American holdings became an expensive liability. Secretary of State William Seward negotiated the purchase of Alaska in 1867 for $7.2 million — roughly two cents per acre — a sum critics derided as "Seward's Folly" until gold discoveries in the 1890s reversed public opinion.

The treaty transfer occurred on October 18, 1867, when Russian and American officials met in Sitka to lower the Imperial flag and raise the Stars and Stripes. The agreement included all islands within specific boundaries, explicitly mentioning "the Aleutian Islands" extending westward to "193 degrees of west longitude." This language captured Attu and the entire chain, though mapmakers in 1867 used outdated surveys that didn't precisely calculate which islands crossed the 180th meridian. The purchase added 586,412 square miles to U.S. territory, making Alaska more than twice the size of Texas.

Strategic Value in War and Peace

World War II transformed the Aleutians from geographic curiosities into strategic battlegrounds. Japan invaded Attu and Kiska islands in June 1942, the only foreign occupation of U.S. soil during the war. The Battle of Attu in May 1943 cost 3,829 American casualties over 19 days of brutal combat in freezing fog. The military constructed bases, airfields, and the Alaska Highway to defend this remote frontier. These installations proved the islands' value as stepping stones between continents, positioned nearly equidistant from Tokyo, Seattle, and Moscow. After the war, Cold War tensions kept Aleutian bases active, monitoring Soviet activity across the Bering Sea.

Today, the islands serve scientific rather than military purposes. The Alaska Maritime National Wildlife Refuge protects 2,400 islands, including most of the Aleutians, as critical habitat for 40 million seabirds. Shemya Island hosts a radar installation tracking space debris and missile launches. Commercial fishing fleets harvest pollock, cod, and crab in surrounding waters, generating billions annually. The islands' volcanoes, including 57 historically active peaks, provide natural laboratories for studying tectonics along the Pacific Ring of Fire. Eruptions from Mount Shishaldin and other Aleutian volcanoes regularly disrupt trans-Pacific air routes, reminding modern travelers of the chain's geographical significance.

The Meridian's Quirks

The International Date Line, which roughly follows the 180th meridian, deviates specifically to keep Alaska unified in time. Rather than splitting the Aleutians into two calendar days, the line jogs westward, placing all U.S. territory on the American side. This adjustment means Russia's Diomede Island, just 2.4 miles from Alaska's Little Diomede, sits 21 hours ahead despite their proximity. During winter, residents of the two islands can literally see tomorrow and yesterday simultaneously across the ice. Alaska itself spans four time zones if you count the Aleutian Islands' separate zone, established in 1983 to rationalize scheduling for the handful of residents and Coast Guard personnel stationed there.

The meridian crossing gives Alaska its easternmost claim, but few Americans realize the Aleutians achieve this geographic feat. Standard maps using Mercator projections distort high latitudes, making the island chain appear shorter and less significant than reality. Globe manufacturers often split their products along the 180th meridian, inadvertently separating Alaska's eastern islands onto opposite sides of the sphere. Educational materials frequently overlook this detail, teaching students that Maine represents America's eastern extreme. Yet Semisopochnoi Island sits at 179.78° east, making it indisputably farther east than any other U.S. territory, completing Alaska's remarkable trifecta.