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The plot in Everett fell into the territory that also included the greater Boston area. In 2011, the government of Massachusetts enacted the Expanded Gaming Act, which permitted Las Vegas-style casino gaming in the state and established three territories, each of which could contain one licensed casino. The site was subsequently primed for development, undergoing several other changes in ownership. Afterwards ownership of the parcel was ceded to Rosen Construction Ventures in Florida. Boston Edison retained the land until 1995, when the land and easements were purchased by O'Donnell Sand & Gravel. It became an industrial center used by Monsanto starting in 1929, with Monsanto selling the parcel to Boston Edison in 1983. The land was acquired by Merrimac Chemical Company in 1917. That year Cochrane Chemical Company purchased a portion of the plot adjacent to New England Chemical's former factory, with the Cochrane factory experiencing heavy use during World War I.
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New England Chemical started a plant on the site in 1868, before going out of business in 1872. Using a corner of White Island, in 1854 the Mystic River Bridge was built across the river. Prior to any backfill, as early as 1804 a dye house had been built on the land, which was later occupied by Cochrane Chemical Company. A section of the plot had been known as White Island in the 1800s, with the island later becoming part of the mainland as backfill expanded the shoreline along the Mystic River. With the project later renamed Wynn Boston Harbor, around 30 of those acres had previously been set aside for industrial use and were inaccessible to the public for more than 100 years. In January 2015, Wynn Resorts purchased 33 acres (13 ha) of land along the Mystic River in Everett, Massachusetts, and announced plans to build the resort- casino Wynn Everett on the plot. The undeveloped parcel in the upper-center of the image, between the railroad bridge (left) and the windmill (right), was used for industrial purposes in the 1800s, before being purchased for the casino in January 2015.
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Aerial view of the Mystic River in November 2015.