Plattsburgh is a city located in Clinton County, New York. As of the 2000 census, the city had a total population of 18,816.<br> Plattsburgh is a small U.S. city located on the western shore of Lake Champlain in the northeastern part of the state of New York. Plattsburgh was founded by Zephaniah Platt in 1785 after he was granted the land for it by George Clinton. The City of Plattsburgh is located entirely within the original boundaries of the Town of Plattsburgh; city government was established in the former Village of Plattsburgh in 1902.<br> With its significant location on a major water thoroughfare and close to the US-Canadian border, Plattsburgh has been the site of a number of historic events including the Revolutionary War's Battle of Valcour and the War of 1812's Battle of Plattsburgh. In more recent times, the city has been distinguished primarily by its United States Air Force base and the State University of New York at Plattsburgh, although it is also a node for tourists headed to the Adirondack Mountains.<br> On the south and east side of Plattsburgh is a plot of land that used to be home to Plattsburgh Air Force Base (PAFB). Until its closing on September 29, 1995, this Air Force Base was the oldest continuously active military base in the United States. Plattsburgh was the site of the United States Army's first tank base in the mid-20th century.<br> During the Cold War, PAFB was the location of the Strategic Air Command's primary wing on the US east coast due to its geographic desirability. The base's location in the Champlain Valley (protected by the Adirondack Mountains) ensured consistent, year-round weather that was safe for take-offs and landings. The 380th Bombardment, Aerospace and Refueling Wings, located at PAFB included B-52 Bombers, air-refueling "tankers" and FB-111s. With a sparse civilian population in Plattsburgh, the base had a great deal of land surface and was one of only four military bases in the United States with a landing strip large enough for a Space Shuttle landing.<br> Despite its geographic desirability and numerous awards for performance excellence, PAFB was closed in a round of national base closures in the early 1990s as the Air Force began to pare down its post-Cold War missions. The base property is now managed by the Plattsburgh Airbase Redevelopment Corporation (PARC) and is used by a number of industrial manufacturers and commercial airlines.<br> Throughout much of the 1980s, when the Canadian dollar was strong relative to the U.S. dollar, Plattsburgh was a favorite tourist location for vacationers from Montreal and southern Quebec. The city beaches and camp grounds were packed all summer long and Plattsburgh attracted enough retail stores and outlets to build a second large indoor shopping mall, in addition to several outdoor shopping centers. Unfortunately, with the closing of PAFB and the strengthening US dollar in the 1990s, much of this Canadian tourism has ceased. Today, city residents rely mostly on the aging industrial paper plants (owned by Georgia-Pacific and Tenneco) that were built when the Adirondacks were a center of logging in the United States.<br> Plattsburgh has been tied to a number of famous and infamous people. John Henry Hopkins, a former rector of Plattsburgh's Trinity Episcopal church was the author of the well-known Christmas hymn "We Three Kings of Orient Are." John Russell Pope, the architect who designed Plattsburgh's City Hall, was a famous architect whose work includes the Jefferson Memorial. Recent former residents of Plattsburgh include Doug Raaberg, holder of a world circumnavigation record in the B-1B; Michael P. Anderson, one of the seven astronauts who died in the Space Shuttle Columbia disaster; and Eric Harris, one of the two shooters at Columbine High School in Littleton, Colorado.<br> On April 20, 2002, there was an earthquake a few miles south of Plattsburgh. It measured 5.1 on the Richter Scale, and was felt as far south as Pennsylvania and as far north as Maine.