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Trang An - Tam Coc zone has an area of more than 6,172 ha, which is a special protection area of scenic spots. This special protection zone is located within Hoa Lu special-use forest, belonging to Hoa Lu ancient capital preservation plan and also under the planning of Trang An World Heritage site with an area of 12,252 ha.
Hương Sơn Complex of Natural Beauty and Historical Monuments # Hanoi: 1991 960; (mixed) The site is an important ecological zone and cultural zone, with archaeological sites dating back 10,000 years and geological formations dating back 200 million years.
The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security.
A historical geographic information system (also written as historical GIS or HGIS) is a geographic information system that may display, store and analyze data of past geographies and track changes in time. It can be regarded as a tool for historical geography.
United States Geological Survey, National Program for Topographic Mapping (1884) War of the Rebellion Atlas (1895) Maps of the United Kingdom. The Brittania (John Ogilby, 1670–1676) Principal Triangulation of Great Britain (1784–1853)
Cedar Creek and Belle Grove National Historical Park became the 388th unit of the United States National Park Service when it was authorized on December 19, 2002. The National Historical Park was created to protect several historically significant locations in the Shenandoah Valley of Northern Virginia, notably the site of the American Civil War Battle of Cedar Creek and the Belle Grove ...
The OpenHistoricalMap domain name was purchased in 2009, [10] and an initial fork of the OpenStreetMap website software was deployed there in 2013. [3] [11]In 2015, the similarly named OpenHistoryMap project was founded to promote sharing of archaeological and historical data according to an open access model.
Topographic maps are also commonly called contour maps or topo maps. In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are often called or quads or quadrangles. Topographic maps conventionally show topography, or land contours, by means of contour lines.