Casco Bay is an open bay of the Gulf of Maine on the coast of Maine in the United States. The National Oceanic and Atmospheric Administration's chart for Casco Bay marks the dividing line between the bay and the Gulf of Maine as running from Bald Head on Cape Small in Phippsburg west-southwest to Dyer Point in Cape Elizabeth. The city of Portland and the Port of Portland are on Casco Bay's western edge.
43°46′12″N 69°57′54″W / 43.770°N 69.965°W
Orr's Island is an island in Casco Bay and the Gulf of Maine, part of the Atlantic Ocean. The island is within the town of Harpswell, Maine, United States. Harriet Beecher Stowe lived briefly on Orr's Island, and used it as the inspiration and setting for her 1861 novel The Pearl of Orr's Island.
South Portland is a city in Cumberland County, Maine, United States, and is the fourth-most populous city in the state, incorporated in 1898. At the 2020 census, the city population was 26,498. Known for its working waterfront, South Portland is situated on Portland Harbor and overlooks the skyline of Portland and the islands of Casco Bay. Due to South Portland's close proximity to air, marine, rail, and highway transportation options, the city has become a center for retail and industry in the region. The Maine Mall, the largest shopping mall in the state, is located in South Portland. It is also a designated Tree City USA community.
Despite the name, South Portland was never part of the city of Portland, but rather part of Cape Elizabeth, separating in 1895. However, both Cape Elizabeth and Portland were once part of Falmouth. Cape Elizabeth, then including what later became South Portland, broke away from Falmouth in 1765. South Portland is a principal city of the Portland–South Portland–Biddeford metropolitan area.
Bay mud consists of thick deposits of soft, unconsolidated silty clay, which is saturated with water; these soil layers are situated at the bottom of certain estuaries, which are normally in temperate regions that have experienced cyclical glacial cycles.
Example locations are Cape Cod Bay, Chongming Dongtan Reserve in Shanghai, China, Banc d'Arguinpreserve in Mauritania, The Bristol Channel in the United Kingdom, Mandø Island in the Wadden Sea in Denmark, Florida Bay, San Francisco Bay, Bay of Fundy, Casco Bay, Penobscot Bay, and Morro Bay.
The Province of Maine refers to any of the various English colonies established in the 17th century along the northeast coast of North America, within portions of the present-day U.S. states of Maine, New Hampshire, and Vermont, and the Canadian provinces of Quebec and New Brunswick. It existed through a series of land patents made by the kings of England during this era, and included New Somersetshire, Lygonia, and Falmouth (now Portland, Maine). The province was incorporated into the Massachusetts Bay Colony during the 1650s, beginning with the formation of York County, Massachusetts, which extended from the Piscataqua River to just east of the mouth of the Presumpscot River in Casco Bay. Eventually, its territory grew to encompass nearly all of present-day Maine.
Harpswell is a town in Cumberland County, Maine, United States, on Casco Bay in the Gulf of Maine. The population was 5,031 at the 2020 census.
Harpswell is composed of land contiguous with the rest of Cumberland County, called Harpswell Neck, as well as three large islands connected by bridges: Sebascodegan Island (locally known as Great Island), Orr's Island, and Bailey Island. Ninety-five smaller islands are within Harpswell's municipal borders.