Angel Island (California) vs. Ellis Island (New York): Two Coasts, Two Gateways

Neither is a state—both are islands in major harbors:

• Angel Island sits in San Francisco Bay, California. It was the West Coast's main immigration station (1910–1940), processing mainly Asian immigrants.
• Ellis Island lies in New York Harbor, New York. It served as the East Coast's primary gateway (1892–1954), handling mostly European arrivals.

Both are now preserved as historic sites—Angel Island State Park and Ellis Island National Museum of Immigration—telling complementary stories of American immigration.