Sitka is a unified city-borough in the southeast portion of the U.S. state of Alaska. It was under Russian rule from 1799 to 1867. The city is situated on the west side of Baranof Island and the south half of Chichagof Island in the Alexander Archipelago of the Pacific Ocean. As of the 2020 census, Sitka had a population of 8,458, the fifth-most populated city in the state.
A seismometer is an instrument that responds to ground noises and shaking such as caused by quakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph. The output of such a device—formerly recorded on paper or film, now recorded and processed digitally—is a seismogram. Such data is used to locate and characterize earthquakes, and to study the Earth's internal structure.
The Eskdalemuir Observatory is a UK national environmental observatory located near Eskdalemuir, Dumfries and Galloway, Scotland. Along with Lerwick and Hartland, Eskdalemuir is one of three permanent geomagnetic observatories in the United Kingdom.
The Gaithersburg Latitude Observatory is a historic astronomical observatory on DeSellum Avenue in Gaithersburg, Maryland. It was established in 1899 as part of a system of six International Latitude Observatories to precisely measure the wobble of the Earth's rotating axis. The observatory building and adjacent monuments were designated a National Historic Landmark in 1989 as a testament to international scientific cooperation. The observatory was taken out of service in 1982 after automation eliminated the need for human observations; the property is now owned by the city.
Mount Edgecumbe is located at the southern end of Kruzof Island, Alaska, about 15 miles (24 km) west of Sitka. The dormant volcano is about 9.9 miles (16 km) east of the Queen Charlotte Fault that separates the North American and Pacific Plates, and is the highest point in the Mount Edgecumbe volcanic field, an area of about 100 square miles (260 km2) on Kruzof Island that also includes Crater Ridge and Shell Mountain.
Sitka National Historical Park is a national historical park in Sitka in the U.S. state of Alaska. It was redesignated as a national historical park from its previous status as national monument on October 18, 1972. The park in its various forms has sought to commemorate the Tlingit and Russian experiences in Alaska.
Heceta Head Light is a lighthouse on the Oregon Coast 13 miles (21 km) north of Florence, and 13 miles (21 km) south of Yachats in the United States. It is located at Heceta Head Lighthouse State Scenic Viewpoint, a state park, midway up a 205-foot-tall (62 m) headland. Built in 1894, the 56-foot (17 m)-tall lighthouse shines a beam visible for 21 nautical miles, making it the strongest light on the Oregon Coast.
Castle Hill also known as the American Flag-Raising Site and now as the Baranof Castle State Historic Site, is a National Historic Landmark and state park in Sitka, Alaska. The hill, providing a commanding view over the city, is the historical site of Tlingit and Russian forts, and the location where Russian Alaska was formally handed over to the United States in 1867. It is also where the 49-star United States flag was first flown after Alaska became a state in 1959.
George Davidson was a geodesist, astronomer, geographer, surveyor and engineer in the United States.
The Sitka Naval Operating Base and U.S. Army Coastal Defenses are the surviving elements of the World War II-era defenses and defense establishments in and around Sitka, Alaska. These facilities, in particular the airfields and naval bases, played a key role in the defense of Alaska, and in military operations against Japanese forces which occupied Attu and Kiska, two remote islands in the Aleutian chain. The Sitka facilities were designated a National Historic Landmark in 1986.
USC&GS Carlile P. Patterson was a survey ship of the United States Coast and Geodetic Survey in operation between 1883 and 1918. Subsequently, she had a brief period of naval service and fifteen seasons as a merchant vessel before she was wrecked on the Alaska coast in 1938.
USC&GS Yukon was a schooner that served as a survey ship from 1878 to 1894 in the United States Coast Survey, which was renamed the United States Coast and Geodetic Survey in 1878. She was the pioneering Coast Survey or Coast and Geodetic Survey ship in many of the waters of the Territory of Alaska, including the Bering Sea and the western Aleutian Islands, and she also operated extensively in California and Washington. She later entered commercial service as Elwood and was wrecked in 1895.
The Allison Guard Station is a Forest Service compound consisting of eight rustic buildings located in the Malheur National Forest in the Ochoco Mountains of eastern Oregon. It was originally built as a district ranger station for the Snow Mountain Ranger District. It was later converted to a summer guard station. Today, it is an active Forest Service guard station with a crew of twelve fire fighters on station during the summer fire season. The station's oldest building, the Donnelly Cabin, is currently listed on the National Register of Historic Places as the "Allison Ranger Station". Most of the other buildings at the Allison Guard Station are eligible for historic designation, but are not yet listed on the National Register.
Volcano House is the name of a series of historic hotels built at the edge of Kīlauea, within the grounds of Hawai'i Volcanoes National Park on the Island of Hawai'i. The original 1877 building is listed on the National Register of Historic Places and now houses the Volcano Art Center. The hotel in use today was built in 1941 and expanded in 1961.
The Unity Ranger Station is a United States Forest Service compound consisting of five buildings and a lookout tower in the Wallowa-Whitman National Forest of northeastern Oregon. It was previously the administrative headquarters for the Unity Ranger District. It is located in the small unincorporated community of Unity, Oregon. The historic structures were built in the rustic style by the Civilian Conservation Corps between 1936 and 1938. Today, the ranger station is only used during the summer months to house Forest Service fire crews. The ranger station is listed on the National Register of Historic Places.
The Sitka U.S. Post Office and Court House, also known as the Sitka Post Office and now serving as Sitka City Hall, is a Moderne style building located at 100 Lincoln Street in the center of Sitka, Alaska. One of eight Federal buildings constructed in the Alaska Territory in the 1930s, it was listed on the National Register of Historic Places in 1997.
The National Tsunami Warning Center (NTWC) is one of two tsunami warning centers in the United States, covering all coastal regions of the United States and Canada, except Hawaii, Guam, the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands. Until 2013, it was known as the West Coast and Alaska Tsunami Warning Center.
The Bergland Administrative Site, also known as the Bergland Ranger Station, is a government administrative complex consisting of six buildings located along M-28 in Bergland, Michigan. It was listed on the National Register of Historic Places in 2005, and currently houses the Bergland Cultural & Heritage Center and The Bergland/Matchwood Historical Society Museum.
The Conrad Observatory is an underground geophysical research facility of the Central Institution for Meteorology and Geodynamics (ZAMG) in Austria. The basic task of the observatory is monitoring relevant physical parameters that are of decisive importance for our understanding of processes on and below earth. At the Conrad Observatory, seismic activities (seismology), variations in gravitational acceleration and mass changes (gravimetry), magnetic field variations, geodetic parameters, atmospheric waves, as well as meteorological data are continuously monitored.
The Wreckage is a log house in Ocean Park, Washington, constructed of unhewn logs in 1912. The house was built by author Guy S. Allison on the Long Beach Peninsula as a beach house, using salvaged materials. Recovering driftwood from the Pacific Ocean, Allison also made what he called a "zoo" of driftwood animal shapes surrounding the house that appear on U.S. Geological Survey maps as "Wreckage Park Zoo." The collection was featured in Ripley's Believe It or Not! and Strange as it Seems.
