Because of the significance of the site for Native American history, in December, 2004, the graving dock project was abandoned. Many of the graves uncovered appeared to hold entire families, who seemed to have died suddenly. Archeologists project that this was likely the result of pandemics of smallpox and other infectious illnesses brought by European immigrants to North America. These caused massive death tolls among Native American populations in 1780 and 1835, as they had no acquired immunity. Infectious diseases contracted from interactions with European fur traders are believed to have killed about 90 percent of the Indians living in the Northwest before European-American settlement of the area. In 2016, Port Angeles installed street signs in English and Klallam to revitalize and preserve the area's Klallam culture. The coordinates of Port Angeles are 48°06′47″N 123°26′27″W (48.112969, -123.440713). According to the United States Census Bureau, the city has a total area of , of which, is land and is water. The city is situated on the northern edge of the Olympic Peninsula along the shore of the Strait of Juan de Fuca. Port Angeles features a long and narrow glacial morraine named Ediz Hook that projects north-easterly nearly three miles into the Strait. Ediz Hook creates a large, natural deep-water harbor shielded from the storms and swells that move predominantly eastward down the Strait from the Pacific Ocean. Coast Guard Air Station / Sector Field Office (SFO) Port Angeles is situated on the end of Ediz Hook. The harbor is deep enough to provide anchorage for large ocean-going ships such as tankers and cruise ships. The south shore of Vancouver Island and the city of Victoria, British Columbia are visible across the Strait to the north. Port Angeles is located in the rain shadow of the Olympic Mountains, which means the city gets significantly less rain than other areas of western Washington. The average annual precipitation total is approximately 25 inches (640 mm), compared to Seattle's 38 inches (970 mm). Temperatures are moderated by the maritime location, with winter lows rarely below 25 degrees Fahrenheit (−4 °C) and summer highs rarely above 80 degrees F (27 °C). However, in winter the city can be vulnerable to windstorms and Arctic cold fronts that sweep across the Strait of Juan de Fuca. Port Angeles receives about 4 inches (100 mm) of snow each year, but it rarely stays on the ground for long.