Two years later, a cave-in flooded three of the four mines, effectively ending the Treadwell era. In Juneau, the Alaska-Gastineau folded from high costs in 1921. A-J was halted by the war in 1944. Juneau was established as Alaska 's capital in 1906 when the government was transferred from Sitka. Today, federal, state and local government employs one out of every two Juneau workers.
Tourism is the largest private employer and continues to grow.
Commercial fishing and mining continue to play a role in Juneau 's economy.