Portland Head Light is a historic lighthouse in Cape Elizabeth, Maine. The light station sits on a headland at the entrance of the primary shipping channel into Portland Harbor, which is within Casco Bay in the Gulf of Maine. Completed in 1791, it is the oldest lighthouse in Maine.

Casco Bay encompasses 14 coastal communities, including two of Maine’s largest cities, Portland and South Portland, and two of Maine’s newest towns, Long Island and Chebeague Island. Casco Bay is both a working waterfront—a port of call for cruise ships, oil tankers, and container ships—and a scenic postcard of historic forts, stalwart lighthouses, secluded anchorages, and many islands.