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Alaska (United States)

1867 – present
ColonyNorth America

The American territory bought from Russia in 1867 — derided as 'Seward's Folly' until gold, copper, salmon and oil proved its wealth — which became the 49th state in 1959.

Organized as a district (1884) and territory (1912), Alaska became the 49th state on 3 January 1959; ANCSA (1971) settled Native land claims and the Prudhoe Bay pipeline (1977) made it an oil state, continuing to 2026.

Borders in 2026 · drawn from 4 sourced border frames
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Borders over time

The atlas holds 4 border frames for Alaska (United States) — the shape you scrub through changes in 1867 · 1890 · 1912 · 1959.

Further reading

Sources