The report analyzes the potential adverse effects of the Cape Wind Energy Project on historic properties under the Criteria of Adverse Effect (36 CFR Part 800.5(a)(1)) for compliance with Section 106 of the National Historic Preservation Act (NHPA). The report concluded that the proposed project will have an indirect adverse visual effect for the 25-year life of the project on twenty-eight above-ground historic properties, and will impact the culture and the traditional religious and ceremonial practices of the Wampanoag Tribe of Gay Head (Aquinnah) and Mashpee Wampanoag Tribe (collectively, the Wampanoag Tribes). This includes visual intrusion into six specific Traditional Cultural Properties (TCPs) and physical intrusion into one TCP identified by the Wampanoag Tribes (i.e., the entire seabed of Nantucket Sound).