Peninsula Point Light stands at the southern tip of Michigan’s Stonington Peninsula, where it was built to guide shipping serving Escanaba and Gladstone and to warn mariners away from a dangerous shoal extending more than 2 miles into Lake Michigan. Authorized in 1856 and completed in 1865, it remained an active navigational aid until 1934 and was abandoned in 1936 after Minneapolis Shoal Light Station entered service. Long associated with keepers including Charles Beggs and Captain James D. Armstrong, the site later became public grounds. Its surviving tower is now preserved for its maritime history, while the peninsula is also known for migratory birds, monarch butterflies, and ancient fossils.